Crashes to desktop in direct3d applications

[InFecTed]

I have a problem with this pc:
Duron 650mhz
Via KT133, Gigabyte mobo
256MB ram (now running at the safest settings)
GeForce2 MX (Tried Detonator 12.90, 12.41, 7.68, 6.50)
DirectX 8.0 (run all diags fine)
Via 4in1 ver. 4.35

When running 3dmark or playing games it randomly crashes back to desktop, no error messages, no BSOD.
What could it be??

 

[nortexoid]

try the latest det.'s from nvidia's site.

if they dont' work, fiddle w/ various D3D settings and video settings (i.e. disabling FW/SBA, changing agp aperature sizes, etc.)

 

[BeauJangles]

If you are overclocking that duron... step it back a little.

 

[InFecTed]

No overclock.
SBA and FW are disabled. AGP aperture 64MB (what is the safest one?)
No AA. AGP compability set to auto in bios.

 

[InFecTed]

up

 

[OfficeDude]

I get that with my Geforce3 Ti200....but I also get errors because the video card wasn't able to complete a drawing operation Someone here suggested downloading different drivers......the 22.5s(from icrontic.com), but the instructions to install it are for win2k users, I'm trying to figure out how to make Winxp accept the drivers.

 

[bacillus]

try increasing your AGP aperture size to 128Mb!

 

[Bozo Galora]

decrease AGP to 1X