In it's drives list, make sure C: is not hidden. Next, logoff is also optional. See if TWEAKXP (its free!) can edit that too.
I have a Dell (Intel Pentium 4, 256MB RAM)
Running Windows XP Home Edition
I recently had a Spamware/Virus situation (which I'm still working on fixing, with the help of instructions i found in the Spyware forum - Thanks!) which has caused a whole whack of little problems. I've figured out a couple (re-enabled Registry Editing; re-enabled Task Manager; Re-enabled "Display" in control panel), but there are 2 i can't figure out:
When I go into "My Computer", my C: Drive is no longer listed.
The "Log Off" button no longer appears on the Start menu. Only the "Turn off Computer" button is there.