DVD drive problem - DMA

Okay, first off, I did try everything I have knowledge of before I resorted to ask for help.

I recently built a new computer, everything works fine except for one thing, I can't enable Ultra DMA 4 on my DVD drive. (PIO transfer mode works fine.) When I enable it by having Windows uninstall and install my secondary IDE controller, explorer crashes and reverts to PIO. I checked the jumper setting on the DVD drive, it was set to master (It's the only DVD drive in this PC, and on the second IDE controller.)

There's nothing I can do, and burning/reading DVDs is really slow and makes everything lock up if I'm doing anything else ;_; Please help, and thanks for any replies.

My epeen (specs):
ASUS K8N-DL nForce 4 motherboard
Dual AMD Opteron 242
1GB ECC RAM
DVD drive - LITEON SHW-160P6S
GeForce 7300LE (If it matters...)

Similar problems can happen with non-MS drivers for IDE controllers.

Chances are high that you would not be seeing this problem if you uninstalled those drivers and used the default Windows drivers.  Shit sux, but this is what a lot of Intel users had to do a few years ago when Intel Application Accelerator (just Intel's name for their UATA drivers) caused similar problems.  Try it and report back.