after installing 3D space navigator for CAD with nvidia GTX 550, getting blue screen

[ACGAS]

Was installing new 3D space navigator for CAD use after install was using it and got 2 warnings that graphics card shut down screen went blank then came back, 3rd time windows stopped working and wont reboot just get Blue screen requesting restart, also wont restore to previous date, have disconected 3D device, still have same isue, Also cant seem to get system to start in safe mode, PC is a windows 7 PC with 32G ram 1tb HD New PC.
I need to get this thing back on line ASAP Any sugestians?

[Emeryjon]

It will be really helpful if provide the log file of BSOD which you are getting on computer. do you have installed the drivers for 3D space Navigator? If your answer is no than you should get the drivers from the official site and install the same on your computer…