What shadow problem are you talking about? What mission/area has the shadow problem? I've played through the game for a few hours and haven't noticed any. The shadows look the same as when no forced AA is used. I use 0x00401045 for 2X MSAA and 2X TrSSAA with SLI AA enabled. This makes it roughly 6X SLI AA and 4X SLI TrSSAA with 3-way GTX 580s. SSAO is also off in game and forced through the driver at High Quality using the Skyrim flag. I'm not using the 60 FPS hack and it seems the developer based the hack off of a pirated/cracked Steam copy. I have the retail DVD version.