I have a client who's icons won't always display properly. No matter what size he makes them (large, tile, etc.) some of them display the icon for whatever program he sets as his default editor (orange flower for example). I have disabled custom icons and re-enabled. I have also deleted the thumbs.db file from some folders with no change.
If he opens a file it is fine, and some icons do display properly- but every folder he navigates to has about %50 of the icons not working.
This happens with files both local and from the server. Anyone else who looks at them gets the previews just fine.