Tried that a couple of times but it still comes back. I saw a thread a while back where it was a known issue, so I just searched again and found an update with the fix. After following the instructions to delete some xx_eu.cod files in the OS folder, problem resolved.

So I am down to the 3rd party apps backup and the folders icon.

I wonder if the folders icon had anything to do with a 4.2 theme (BB Today Plus) that I installed and then deleted.