06-06-2013 02:47 PM
Same problem I had, same scenario, I couldnt delete mine either.. They were "png" files from Kindle.. Tried to delete, and says file type not supported, unable to delete.
I had to reinstall the entire operating system, and got rid of the Kindle ap.
06-06-2013 03:07 PM
06-06-2013 05:42 PM
06-07-2013 04:03 PM
06-10-2013 04:38 PM
06-10-2013 11:22 PM
I had the same problem.
The issue disappeared when I upgraded to the latest 10.1 OS.
It seems there is some kind of cache file that needs to be cleaned and re-initiized.