you need to boot from the vista DVD and use is repair tools to fix your startup.

mikeyhsd@sprintpcs.com

 Ok so my problem is that i downloaded a gaming addition of windows xp so
 i can play games like crysis while still having vista i put it onto a
 disk restarted my computer went into bios set it to disk restarted it
 loaded installed then it started installing  my keyboard and mouse after
 that it stopped working everytime so i couldnt do anything else at all i
 tried this 6 times before i finally gave up so i went back into bios to
 set it to hardrive but it still loads XP not vista i tried putting the
 vista disk in then loading from disc IT STILL LOADED XP i cannot get
 onto my vista os anyone help because i also can't get onto xp because my
 keyboard and mouse stop working:(.

 --
 Waddi

I said in my post that when i put the vista disk and set my computer to
load from the disc in still loads vista and starts installing the
keyboard and mouse again then it doesnt work.