I'm guessing there is a file in that directory that has a p in its name, that is somehow "evil"
Can you check the files in that folder, and look for one that might have a
messed up date stamp, or messed up icon, or something else in it?
If there are a lot of files, you might try moving half of them out of their until you find the offending file (assuming i'm right that it has to do with a file that is somehow odd).