ext2 if fine. Cedega will make a folder that is basically a fake c-drive. All applications you install will go to this fake drive. This ais also where the windows dlls, etc will be stored. Mine is in my home folder in a hillden directory
/home/Myk/.transgaming
on a side note, Painkiller works VERY well with Cedega. Doom3 is said to work with it as well, but i', not ready to pay $50+ for another FPS...
-myk
|