S!
I have now the 409beta dll's dated 25.01.2008. With them I got flickering textures, but when enabling Catalyst AI to Standard = vanished. Only thing is that the shoreline went darker with these DLL's and sometimes "stick out" thru fog at distance.
Another funny thing I noticed is that on Kuban map flying above Novoryssiysk when Forest=2 I get considerable drop in FPS but if I have Forest=3 there is no FPS drop at all. Strange if you ask me. I have VSync on and with Forest=3 I get 60FPS, with Forest=2 it goes down to 25-30FPS.
I won't buy a nVidia card just to get IL-2 running because all other games run just fine. So as Alpha said, a set of DLL's would be nice at some point and VERY much appreciated
Until then I use Catalyst 9.12 Hotfix for other games and dropped the atioglxx.dll from 9.10's to IL-2 folder. Works fine

Hopes are in 10.1's...