Use used the root user?!
Well, there's your problem! Logging in as the room user can futz up all kinds of things, especially in the Finder. Repair permissions! Zap the PRAM! Defrag your hard drive! And recompile your kernel!
No, you don't need to do all that, but using root in the GUI is
a very bad idea and can
cause unexpected problems, especially in the Finder.
Okay, now that that's said and done:
Fire up Terminal and show us what this command gives you: