weird explorer problem

[phishhead]

everyonce and awhile if I right click in explorer or my computer I get the kinds ms words that a problem has happened and kindly will shut down. well I check the details and its in shell.dll and app.dll. Then I debug and that helps or I have to reboot. Its starting to get really annoying.

Ive did a virus, and spyware sweep with no results. I attached the bug report if any you can read greek go for it.

edit. I've did a sfc /scannow, reapplied sp1 and 2. without a fix.