I'm running XP Pro OS, can't remember if it's the same for win98 SE, etc.
Goto Control Panel, System, Device Manager, Scroll down till you see IDE /ATA/ATAPI CONTROLLERS, left click on the + sign and highlight Secondary IDE channel, right click properties and it's the second Tab . That's what i do on my system cos my A04 is set as Secondary Master. There you can turn off the DMA and change it to PIO.
