IDE not recognised

[Mark]

I recently un-installed my Via IDE drivers in order to re-
install a new driver. However, on re-booting my machine
in order to install the new drivers, Windows has
installed SCSI/RAID drivers instead of the default IDE
controller drivers and will not now recognise either the
Primary or Secondary IDE channels. Eash time I re-boot
the computer Windows XP finds new hardward "IDE
controller" but cannot find any suitable drivers. I have
tried re-installing the VIA drivers from the CD-Rom but
they are not recognised when I re-boot the computer.

Any help and advice would be much appreciated.

Thankyou