From: http://www.eng-tips.com/viewthread.cfm?qid=298459

My guess is that you're probably using 64bit Windows 7?

On 64bit systems (Vista & Win 7), the two variables UGII_SDI_BPS_JOBS_DIR & UGII_SDI_OVERRIDE_HOME need to be set.
When they are unspecified they are created in the users profile, but Win 7 & Vista works their permissions differently from WinXP.

Creating those two variables & then pointing them to look at a folder, (c:\temp is the example I would follow) fixes the problem.

set UGII_BASE_DIR="C:\progra~2\UGS\NX 6.0\"
set UGII_ROOT_DIR="C:\progra~2\UGS\NX 6.0\UGII"

rem --------------------------------------------------------------------------------------------
rem set PATH
rem --------------------------------------------------------------------------------------------
set PATH=%SYSTEMROOT%\system32;%UGII_ROOT_DIR%;%UGII_BASE_DIR%;%PATH%

set UGII_SDI_BPS_JOBS_DIR=c:\temp
set UGII_SDI_OVERRIDE_HOME=c:\temp

%UGII_ROOT_DIR%\ugraf.exe

NXSA7-Riches-BeginningAndIntermediatePlotting.pdf: http://www-cad.fnal.gov/PLM_World/2006/academic_programs/NX/NXSA7-Riches-BeginningAndIntermediatePlotting.pdf

To plot in NX, you first define printer in printer group usint **File>Utilities>Printer Administration**. 
After defining the printer group and taking steps to tell NX ou your printer group, you can direct plots 
to a particulay printer by selecting the group and the printer via **File>Plot**.

Reference: Environment Variables: C:\Program Files (x86)\UGS\NX 6.0\UGII\ugii_env.dat

############################################################################
#
#  PLOTTER AND PRINTER ENVIRONMENT VARIABLES:
#
#  Variables in this section configure SDI plotting software used by NX.
#
#  By default, only variable UGII_SDI_BASE is set and other plotting
#  variables are unset (commented out). NX uses variable UGII_SDI_BASE
#  to initialize unset variables as shown below.
#
#  The base directory where the plot kit can be found.  All variables default
#  to values based off of this variable.
#
UGII_SDI_BASE=${UGII_BASE_DIR}\nxplot
#
#  When plotting, NX will automatically append the sheet name to the jobname
#  so that the files generated for different sheets can be distinguished.  If
#  the sheet name is not wanted, then set the following variable to disable
#  this functionality.  Turning this off will generate the same CGM jobname 
#  for multiple sheets, so it should be used with caution.
#  
#UGII_PLOT_DONT_APPEND_SHEET_NAME=1
#
#  The location of the cgm to pdf conversion utility
#
UGII_CGM2PDF=${UGII_SDI_BASE}\bin\pdf
#
#  When you use cgm2pdf as an image for a plotter queue, the SDI
#  software will call it with one parameter, the CGM file to be
#  created.  In this case UGII_PDF_OUTPUT_DIR tells the cgm2pdf
#  image where the output PDF file is to be created.
#
#UGII_PDF_OUTPUT_DIR=
#
#  When you use cgm2pdf as an image for a plotter queue, you may
#  want to append the plotter output into one output PDF file.
#  Use UGII_PDF_APPEND for this.  If it is set, then append will
#  be done.  If it does not exist, then appending will not be done.
#UGII_PDF_APPEND=1
#
#  This variable specifies a single printer group directory that is
#  shared by all users. If you prefer to use multiple printer group
#  directories, then specify the directories in a printer group list
#  file instead. Before setting this variable, review printer group
#  concepts presented in NX Help documentation.
#
#UGII_SDI_SERVER_CFG_DIR=${UGII_SDI_BASE}\config\pm_server
#
#  The directory that SDI software will use as default for input.  This
#  will effect the directory that the user sees when they press "browse"
#  in the NX Plot Print screen.
#
#UGII_SDI_IP_DIR=${UGII_TMP_DIR}
#
#  The directory that SDI software will use as the default for output.  This
#  will effect the default directory when a user plots to a file.
#
#UGII_SDI_OP_DIR=${UGII_TMP_DIR}
#
#  SDI software will normally add a PS command to HPGL and HPGL/2 output.  You
#  can turn off this behavior by setting the following variable to 1.
#
#UGII_SDI_CGM_HPGL_NO_PS=1
#
# The following variable is used to control the resolution used to convert
# a CGM to an EMF file when printing a wireframe display.  The default
# resolution is 600 DPI, the variable can be set from 200 to 9600.
#UGII_SDI_CGM2EXP_RESOLUTION=600
#
#  Set the following variable to cause the SDI printing software to suppress
#  the generation of registration marks at the corner of HPGL output.  Note
#  This variable should be used instead of UGII_IGNORE_OFFSET which it
#  replaces.
# UGII_SDI_IGNORE_HPGL_OFFSET=1
#
#  Set the following variable to cause the SDI printing software to suppress
#  the generation of registration marks at the corner of HPGL-2 output.
# UGII_SDI_IGNORE_HPGL2_OFFSET=1
#
#  Set the following variable to cause the SDI printing software to suppress the
#  message box that the Image exceeds the printable page size.
# UGII_SDI_IGNORE_SIZE_WARNING=1
#
#  Set the following variable to specify the location for the output of the
#  Gerber format executable
#
UGII_SDI_OUTPUT_DIR=${UGII_TMP_DIR}
#
#  This is the directory the SDI software uses to look for executables.
#
#UGII_SDI_BIN=${UGII_SDI_BASE}\bin
#
#  This is the location of the various fonts that are required when
#  rendering PostScript fonts.
#
#UGII_SDI_ADOBE_PATH=${UGII_SDI_BASE}\fonts
#
# This is the top level directory where the language files are found for
# displaying the SDI user interface.
#
#UGII_SDI_LANGUAGES=${UGII_SDI_BASE}\languages
#
# This directory is the directory where the actual language files are found.
#
#UGII_SDI_PM_LANGUAGES=${UGII_SDI_BASE}\languages\pm
#
# This points to the file used to display the SDI help.
#
#UGII_SDI_HELP_UGS=${UGII_SDI_BASE}\help\pm\default.htm
#
# This variable can be set to BPS or WORKGROUP. BPS is the setting for
# SDI Basic Print Solution software provided with NX. WORKGROUP is the
# setting for optional SDI Print Master Server software.
#
#UGII_SDI_SERVER_TYPE=BPS
#
# This is the directory where temporary jobs are created for the user when
# plotting is done.
#
#UGII_SDI_BPS_JOBS_DIR=${UGII_TMP_DIR}\bps
#
# This is the executable used to implement the Basic Print Solution.
#
#UGII_SDI_SERVER_PLOT=bpsplot_sdrc.exe
#
# This variable determines the logo displayed by the SDI user interface.
#
#UGII_SDI_LOGO_NAME=NX

From: http://wwwasd.web.cern.ch/wwwasd/lhc++/FLEXLM/htmlman/flexuser/chap6.htm

  6.4 lmgrd
  lmgrd is the main daemon program for FLEXlm. When you invoke lmgrd, it looks for the license file 
  which contains the information about vendors and features. On Unix systems, it is strongly recommended 
  that lmgrd be run as a non-privileged user (not root).
  Usage is:
  lmgrd [ -app ] [ -c license_file ] [ -t timeout_interval ] [ -l logfile ]
        [ -s timestamp_interval ] [ -2 -p ] [ -v ] [ -x lmdown ] [ -x lmremove ]
  -app
  Required for Windows/NT systems.
  -c license_file
  Use the license file named.
  -t timeout_interval
  Sets a timeout interval, in seconds, during which redundant daemons must complete their 
  connections to each other. The default value is 10 seconds. A larger value may be desirable 
  if the daemons are being run on busy systems or a very heavily loaded network.
  -l logfile
  Write the debug log to logfile.
  -s timestamp_interval
  Specifies the logfile timestamp interval, in minutes. The default is 360 minutes.
  -2 -p
  Restricts usage of lmdown, lmreread, and lmremove to a FLEXlm administrator who is 
  by default root. If there a Unix group called `lmadmin' then use is restricted to 
  only members of that group. If root is not a member of this group, then root does 
  not have permission to use any of the above utilities. The `-p' option is available 
  in FLEXlm v2.4 and later.
  -v
  Prints lmgrd's version number and copyright and exits.
  -x lmdown
  Disallow the lmdown command (no user can run lmdown). If lmdown is disabled, you will need 
  to stop lmgrd via `kill pid' (Unix) or CTRL-ALT-DEL and stop the lmgrd and vendor daemon 
  processes (Windows 95). On Unix, be sure the kill command does not have a -9 argument.
  -x lmremove
  Disallow the lmremove command (no user can run lmremove)
  The -x lmdown and -x lmremove options are available in FLEXlm v4.0 and later.
  
  6.3 lmdown
  The lmdown utility allows for the graceful shutdown of all license daemons (both lmgrd and all vendor daemons)
  on all nodes.
  Usage is:
  lmdown [-c license_file] [-q]
  -c license_file
  Use the specified license file.
  -q
  Don't prompt or print a header. Otherwise lmdown asks `Are you sure? [y/n]: `.
  You should protect the execution of lmdown, since shutting down the servers 
  causes users to lose their licenses. See the `-p' or the `-x' options in 
  Section 6.4, `lmgrd,' on page 41 for details about securing access to lmdown.
  When shutting down redundant servers, there is a 1 minute delay before the servers shut down. 
  Do not use `kill -9' to shut down the license servers.

  must not have any other uglmgrd running on machine.
  32 and 64 bit uglmgrd.exe are same