I can't start the disk management tool in Windows XP Professional SP2, it runs in safe mode but not in normal. I get the error 'server execution failed' in a popup window when i try and start it and it puts the following error in event viewer;

The server {D485DDC0-49C6-11D1-8E56-00A0C92C9D5D} did not register with DCOM within the required timeout.

ANyone out there have an idea whats up?