Hum,
at boot
PRESS the `F1` or `delete` key, and enter the bios,
Switch off the SATA booting/search option.
(you are using IDE).
And are you sure you loaded all the raid/via 4 in 1 drivers on the cd rom (they`re always hidded away to bug you)
Also worth a look at the control panel --> system -->hardware tab
and check that there arn`t any exclamation marks against any hardware devices...