Problem shutting off the computer

Hi

Wonder if any of you can help me on this one:

Yesterday I failed to shut off the computer in the usual way, the turn off,sleep and reboot buttons did not work, later on it all came back to normal as nothing ever happened.

Checked the system with AV and anti spy, everything was clean .

Any idea what is it that caused this and what can I do to solve it next time it happens?

Please see system details in my signature.

Thanks

EP

Dunno. If you use WinXP and don't have Microsoft User Profile Hive Cleanup Service installed it's something that should really be on all installations of XP - in my opinion.

You could have a look in the Event Viewer for any pointers to the prob?