First off, as Larry stated, you need to install FlexLM. Next, if you're using a dongle, you will have to install the sentinel driver for it. If your dongle is USB, then you will need to remove it BEFORE installing the sentinel driver (per UGS instructions). If the dongle is a parallel port dongle, you DO NOT need to remove it. I believe the default location is C:\Program Files\UGS\License Servers\UGNXFLEXlm\Hardware_Key. You will want to execute sentinelsystemdriver.msi to install the dongle driver. Be sure to plug your dongle back into the USB port before proceeding further, if you're using a USB dongle.
After that, run LMTools (Start -> Programs -> Unigraphics NX3 -> FlexLM Tools -> lmtools). Under the Services/License File tab, set the Server List to Configuration using Services (the lower tick box) and you should see Unigraphics License Server (uglmd) in the white box. Next, click on the Config Services tab and next to the Services Name it should read Unigraphics License Server (uglmd) in the pulldown. If not, use the pulldown & select it. Next, set the 3 paths below the pulldown. The default location for lmgrd.exe is C:\Program Files\UGS\License Servers\UGNXFLEXlm\lmgrd.exe. My path for the license file is C:\Program Files\UGS\License Servers\UGNXFLEXlm\ugnx3.lic. The default path to the debug log file is C:\Program Files\UGS\License Servers\UGNXFLEXlm\ugflexlm.log. Make sure the bottom two check boxes are checked ON and then press Save Service in the upper right.
Finally, go to the Start/Stop/Reread tab. Click Start Server, just to be sure the license server is running. Then press ReRead License File and see if you get any errors.
Before starting NX, it would probably be a good idea to see that your bundles are selected, so go to Start -> Programs -> Unigraphics NX3 -> FlexLM Tools -> License Options and make SURE your bundle is listed on the RIGHT side of the dialog under Selected Bundles. If it isn't, highlight the bundle name, then click the ADD button.
Now see if NX will fire up. If not, then call GTAC and have them walk you through the install. I did this off the top of my head, so if I left anything out, my apologies & hopefully someone will catch it if they read my response.
Tim Flater
Senior Designer
Enkei America, Inc.