100% CPU Usage

Ok, my explorer.exe is using 100% of my cpu about 1 minute after I boot my computer.  Ive tried scanning with Spybot but no luck.  Right now my temp fix is to stop explorer and then start it again as a new task. 

Any advice would be appreciated.

>>8
If extensive experience means having a decent understanding of the NT architecture, using the command line, using/knowing about hardlinks and NTFS junctions, messing with services in the registry, hand editing your file associations and methods, scripting and compiling (and possibly using some Win32 API calls), knowing about Unicode and locale issues, being able to configure a more complex network with it, knowing how to fix things and do basic maintenance to the registry and NTFS, and such things, then I very much respect their opinion on other OSes they know vs. Windows NT.