Strange, I tested r29895 on a ATI card a moment ago & geoscape is working fine...
You could try some other drivers as the OpenGL implementation of ATI is very buggy & they promise stuff the driver does never bring, I am very YXCYFSDFG!!!%&$& !
& arisian is also for sure...
You can use a tool like OpenGL Viewer to test the OpenGL capabilities of your driver:
http://www.realtech-vr.com/glview/index.htmlThere are lots of Alpha & Beta drivers leaked to download in various places with extended OpenGL capabilities...
One driver even boasted having full OpenGL 4.0 functionality implemented, but just in theory (nothing visible when rendering OpenGL 3.0+)...
So ATI seems to be going strange ways when delivering advanced hardware with *hit drivers...
btw., I did not find one driver being able to deal with the black model textures problem on the battlescape...
On the other hand, testing the new shaders & improvements in the rendering on a Nvidia GTX-260 is really much fun as the game behaves much more smooth than before & I can feel no slowdowns whatsoever even with upgraded texture-resolutions & using max settings & running the game on 1920x1440 resolution...
So maybe we all should run into the next store to support Nvidia before 2.3 comes out
(just joking, arisian will debug this problem also, like he did with all other problems before, but I think he would be glad, if someone could donate a modern ATI-gfx card for him as he has problems reproducing some of the bugs the ATI cards are producing afaik... So if someone has too much money, please send arisian some 5970 or so... [Maybe ATI should do this ?])