I'm not sure what caused your problem, but maybe this will help (and it certainly won't hurt)...
If you don't already have it, download and install TweakUI from here...
http://www.microsoft.com/windowsxp/pro/dow...s/powertoys.asp
Then click on the last option on the left called 'Repair'. Select 'Rebuild Icons' and click on the Repair Now button.
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