SCO 5.0.7 Installation Problems

Happy new year guys.

I have a inspiron 5100 laptop "Dell"

When i'm trying to install SCO openserver 5.0.7 i get this error right after it goes thru the hardware bootup stage.

The error is (PANIC: wdsetparam: no device info for ctlr 1 drive 0
is ctlr 0 , drive 0 not an ATA disk?

I really need help with this ,

Thanks a lot