Transparent patch of terrain - ati - windows 7 64 bit

[Skurcey]

I just had my new comp with an ATI 5770 and windows 7 64 bit, some patch of terrain are invisible/transparent, some mesh too.
I'm using 10.7 catalyst.

[me=Skurcey]is sad panda  [/me]

 

[Ekardt]

Same exact problem, but im running ATI Radeon HD 4670. Win7 64bit too. I think its a problem with the latest Catalyst 10.8 update (just released a week or two ago) combined with the new patch. I also get missing hair and heads A LOT. No other real problems, occasional crashes when I alt tab out, but the only in game problem i suffer from is missing meshes. Sometimes its terrain, sometimes its an entire building. But leaving the area and coming back usually fixes it, at the expense of OTHER objects disappearing.