[Veljo]

A few times I've had the Finder hang on me for a minute or so when copying lots of files across from my external hard disk, then after a long wait it finally woke up. Have you tried leaving your Mac for a good 5-10 minutes? That might be just what you need...if not, I guess it's time to start up in Target Disk mode, back up your stuff, format and do a clean install.