the reason I wanted DMA is because it was on there originally and when I was trying to get DVDXCOPY to work, one of their troubleshooting steps was to dick with those controller drivers and that stuck them in PIO mode only....and PIO mode is the slowest of the modes....after I changed those drivers and they were stuck on PIO mode.....I noticed a HUGE difference in the speed of my comp....it slowed down dramatically...and just today I figured out why and reinstalled those drivers. any other ideas for limewire? thanks