im guessing that you need to install your motherboard chipset drivers maybe. do you know your motherboard model no.? and do you have a motherboard driver cdrom for it?
what version of windows do you have? if its xp then try this maybe:
click 'start/control panel/system/hardware/device manager' have a look at the list of hardware devices listed here,are there any yellow question marks or exclamation marks beside any of the devices listed? if so they either have a problem or the motherboard drivers need installing maybe. right click them and choose properties/driver for more info.
if everything is ok here then try exapnding 'IDE ATA/ATAPI controllers' listed here then right click on the primary and secondary ide channels in turn and select 'properties/advanced settings' and from the drop down box choose 'dma if available' for both.