hi, i got vista home premium and went to install it on my 2nd HDD so i could have xp on my other one, at about 50% through the 1st stage of the installation it came up with and error (it went to a blue screen) and it said something like an uncontrolable error has occured, then it tells me to turn off caching of my bios and try again, i checked my bios and it was already off. i get this error all the time. now when i try and boot from my HDD with xp installed it gets to the log in screen but my mouse and keyboard dont work so i cant log in. could someone please help me asap. thankyou firstname.lastname@example.org is my msn add, it would be a lot easier to talk on that. thanks again to anyone that can help me.