When I play HL2 SP, everything looks okay. But I've been seeing this problem cropping up in HL2DM. It can occur either with my own map or with lockdown or overwatch. The map loads fine, but over the course of walking around in the map and switching weapons, the weapon models start to get mottled with green and yellow patterned squares. In addition, when I shoot the walls, the decals appear as these strangely colored patterns too.

Has anyone else experienced this problem? I suspect it's a video card issue. I have an ancient card (Radeon 9200), so I either have to update the driver (which I believe I've done already) or just get some new hardware.

ancient huh? where does that put my 9000? it came out a fair bit before the 9200 did.

you saw my critique shots, a full critique takes me about an hour, and i have no issues with my 9000 (other than its low power and i have to run things at a lower setting)

i'd say driver or heat issues, but my money is on drivers.

if you are using 3rd party, sometimes they clash with these odd numbered cards. the 3rd party people tend to make them work with the better cards and forget testing the drivers completely with cards like ours.

i had to switch back to the normal radeon drivers with my 9000, because of funny issues. i had the *taboo* HL2. and only stock radeon drivers would work.

if you are sure you have stock radeon drivers, then try the 3rd party ones at omega. they have served me well sometimes as an alternative.

good luck

It should do as i had same problem and updating ATI fixed it