I'm a bit frustrated... my computer is really unstable with 3D games! After 5-10 minutes playing with *any* 3D game something happens that freezes my system... and I have to reboot almost everytime!

Sometimes the ATI VPU recovery is automatically launched
sometimes the screen become totally black
sometimes a strange message appears (low refresh frequency 37Hz-0Hz)


My HW:
Pentium 4 Northwood B 2.4GHz FSB 533MHz(not overclocked)
mobo Gigabyte 8SQ8000-Ultra (northbridge SiS655)
2x 256MB DDR 400MHz SDRAM module (dual-channel configuration)
video card Sapphire ATI Radeon 9100 with 128MB AGP4X
Monitor Philips 109B4 (19")
etc.

My SW:
Windowx XP SP2 (fully patched)
ATI Catalyst 5.3
DirectX 9.0c (diagnostic says it's all ok)


I think it's somthing related to the AGP.
My current driver is SiS AGP(GART) Driver (v1.19a)
C:\WINDOWS\System32\DRIVERS\SISAGPX.SYS version 7.2.0.1170