Armani

Hi there, Wondered if anyone could help/offer advice. Starting up my pc has changed , when booting up my Win XP SP2 i get a black screen saying Window xp home edition or Windows XP Setup,when its loading it reads press F6 to install SCSI Raid then it goes throught to the end and reads SiSRaid.sys could not be found. I have pressed the F6 I decided to reinstall the Windows XP disc so I backed things up I needed and started to do it, I thought great this is going to be the end of my problem, the Disc drives started running, then instead of reinstalling it came up with SiS Raid. sys. could not be found. So I am at a loss, I have also gone on device manager for raids uninstall and reinstall that has not helped the problem Is there anyone that can help me, on other forums I have had replys, but not one that has anything to do with the problem I am having, it looks as though no body knows what I can do, to repair the problem. If you know please can you help me ,even when trying to format it says SiSRaid.sys not found and cannot continue ?? system restore wont work either.. Im all ears guys..