Hi folks.This is my situation:Reinstalled Win XP and FS9 9.1. FS9 Still throws me back to desktop.I've read in guru3d forum a topic regarding my video card that the best Nvidia drivers is the 66.93 version. Using the latest (81.xx) seems to suffer a CTD even using Windows instead of FS9.As I was going to perform a complete reinstallation anyway (at least once a year for cleaning, etc) I thought that the problem might be some conflict between drivers and a recently installed software. Other factor could be also flying Wilco's B737 PIC or PMDG's B737NG. This was discarded once flying the default aircraft resulted in a CTD.I'm still going to replace the videocard to my old one. (Gforce 2 MMX 400).I've also replaced the RAMs so further testing also must be done. So far only FS9 has caused a system hang.For users of the same video card wich drivers are there that FS9 seems to like?thanx

Hello,I use the XG drivers for months with success.http://www.tweaksrus.com/

Thanks Emile I'll try that.Would suggest a version number for me? ;-)