[thepontif]

OK...I just re-read your first post. Did you load the Ultra ATA driver that came on the install disk with the CUSL2-C? If you did, that's your problem.

Asus says to load it, but PTLE doesn't like it. When you installed your board, there was a software install program that installed all of your drivers. There was a SEPARATE install option for the Ultra ATA driver. You don't want that driver. If you remove it and reboot like I described before, windows will reload the standard driver. Then you'll find the DMA option where you've been looking for it.
-Mike