I just installed Vista, but when I restarted it last I saw a message right before it began restarting that said it can't find some logon file (don't remember the exact name), please reinstall the file, or something close to that. Now it won't boot up; it starts with the little green bars going across the screen for a while, then just restarts and goes back to my boot menu. Anyone know if there is there any easy way I can fix this? I was wondering if I could maybe use my MS DOS disk or my Windows XP recovery disk possibly? Thanks in advance for any help.