'Computer' disappeared from Win 7 x64 RC

#1
Somehow, the 'Computer'/'My Computer' location is missing from my computer. I can browse to any subfolders of 'Computer' (like program files, removable drives, other partitions) and everything is fine:


However, when I click on the 'Computer ' button in the location bar to take me to it, I get this:

...just blank space where drives and all that should be. I don't know what's up with this, but 'Computer' also deleted itself from the start menu. It's nowhere. Any suggestions on how to restore it? Thanks.
 


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