forums.naturalpoint.com

Not sure what is going on with my TrackIR5...the driver seems to be crashing on computer startup..when it does start up the tracker wigs out big time...I'm using a GTX 650..I've had working like a charm a number of times...

..any specific instructions for doing a clean driver reinstall??

The driver file is named npusbio_x64.sys (for 64 bit systems) and should be located in c:\windows\system32\drivers. Deleting that and reinstalling the TrackIR software should prompt it to reinstall the driver. When you say it wigs out big time do you mean it crashes or is the tracking very erratic?