This may have been caused by my replacing a PS2 mouse yesterday without shutting down the PC first - only thing I can think of - silly man! On powering on this morning, the M/Board splash screen displays for a few seconds, then a black screen for 10 secs, then the MS Win XP logo & progress bar displays for approx. 45 secs. Then a black screen with lots of text appears, saying "your computer did not shut down correctly" (not true) & other statements. It gives options for Safe Mode, SF + Networking, SF + Command prompt, Last Known Good config, & Start Win Normally. None of these do anything at all, & the whole sequence starts again from the M/Bd screen. There are no error or other messages of any kind displayed. After a bit of experimenting, I can get as far as: - Boot from a Win XP CD - Select Recovery console option - Select the "1: D:\Windows' option - the only one displayed - Press ENTER at the "Admin. Password" request - don't know this (may not have one) - At the resulting D:\Windows directory prompt, can run various DOS commands (incl. CHKDSK which does not show anything amiss. I can also use F8 to bring up the Windows Advance Options screen, but none of the options displayed produce any different result. Can anyone provide suggestions on where I can go from here please - its my (new)wife's PC, so my credibility is really on the line here!! If it is a corrupt (mouse??) driver, is there anyway I can delete this from the DOS prompt? Would trying Bootcfg /Rebuild and/or Fixboot and/or Fixmbr commands be worth trying? Any suggestions would be highly appreciated. Thanks.