My dvd rom has been working fine in DMA mode, but recently I tried to rip a dvd that was badly scratched. This then caused several read errors and now windows has locked the drive in PIO mode. I have had this prob before and was forced to physicaly swap the drives around to get DMA up and running again. Are there any registry entries I can delete/modify to get it to run in DMA again. p.s. ive tried the IDE tool from the via website sorted the prob but for some reason my pioneer A03 and Liteon 12101B wont burn any disks even though the system seems to think they are, the "burning" lights dont come on and the disks remain blank after the operation.