A few folder and apps ICONS are gone, totally transparent.
I recently upgraded from OS X 10.6.8 to 10.8.2, and now a few folder and apps ICONS are gone, totally transparent. Sometimes after multiple restarts, they temporarly come back, until what seems to be the next restart. I tried resetting the PRAM, and using OnyX to Rebuild the LaunchServices and Appearance of Folders Contents (remove the .DS_Store files). Is it still possible to do clean installs, especially from OS X App Store downloads?
MacBook Pro, OS X Mountain Lion (10.8.2)