PC crash

[Guest]

Hi,
since yesterday, I get a crash problem every time I play one of my games.
With some games, it crashes instantly when I start them up (Microsoft Flight
Simulator 2004, for example) and with others it takes about 2 minutes
(Microsoft Combat Flight Simulator 3)

At the System information, I see this conflict:
Memory Address 0xF0000000-0xF81FFFFF Intel(R) 82845G/GL/GE/PE/GV Processor
to AGP Controller - 2561
Memory Address 0xF0000000-0xF81FFFFF NVIDIA GeForce4 Ti 4200 with AGP8X

I have a Compaq EVO with a 2.53Ghz Intel processor, NVIDIA Geforce4 Ti4200,
WinXP PRO.
I tried System Restore, no use...
I havent installed any updates recently, Ive checked the NVIDIA site, which
said I had to upgrade drivers, that didnt help.
I flashed my BIOS, didnt help, Installed DirectX9, didnt help.
I dont know what this is, please somebody help me...

 

[Guest]

I forget to say this:
It's something with direct3D, since my computer locks up when I try to test
direct 3D in the direct X diagnostic tool.