Mangled/Garbled graphics and freezes

[Nighthawk454]

Hey all,
Wondering if anyone's noticed the same problem I have, and, if so, what they've done to correct it.

I've done almost everything to try to get Civ IV to work - short of getting a new computer, that is. Updated drivers (Motherboard and video card), cleaned both video card and processor heatsink, etc.I have:

Win XP SP2
Athlon 64 3200+
ATI All-in-wonder 9800
1GB ram

I've even suppressed the in-game movies. Yet if I play longer than 5-10 minutes, the elements of the game on screen start to get garbled, or I'll have weird artifacts (see attached pic). Also, the game freezes a lot when other leaders contact me (and thus their animated heads are bobbing around). Any suggestions? I'd sure appreciate it, I really want to play this game but I'm at a loss right now, and it sucks. TIA

[Asatruer]

I had been getting similar effects with my 9700pro, but haven't seen them since I dropped my resolution to 1024x768.

[LoriTX]

I have a simalar problem with some of the maps. I always play huge maps.

The ones that break up the fastest are the Archapelago and Custom Contenents. These are the maps I like the most and cant play!

If I play the others they dont get garbled until late game if at all!

Lori

[Urban Ranger]

Set your resolution to 1024x768 and low on the rest of the options to see if that helps. Also don't forget to set antialiasing to 0.