No guarantees but you might try System Restore to return your computer to a date/time prior to charging the iPod Touch.
A System Restore will also uninstall programs and drivers that were installed after the date of the selected restore point.
Another long shot, but you could also try rebuilding your icon cache.
Icon Cache - Rebuild
And an even longer shot is to run a system file checker scan from an elevated command prompt (option two.) It will look for damaged or corrupt system files. If problems are found run the scan 3 times rebooting in between each scan.
SFC /SCANNOW Command - System File Checker