I also get the "desktop whiteout" problem when exiting games with the 7072 drivers.
I have found the best combination for my system is the 7068's & DX8 in Win98SE, & the 3073's with DX8 in W2K.
Combat FS2 works fine for me with the 7068's, although with the 7062's the menus where so corrupted the game was unplayable.