You can always try renaming it: Code: sudo gainroot cd /usr/libexec mv hildon-thumbnailerd hildon-thumbnailerd-old echo "#!/bin/ash return 0" > hildon-thumbnailerd Note: press the enter key after typing "ash", then type the next line. This will replace that application with a script that does nothing.
sudo gainroot cd /usr/libexec mv hildon-thumbnailerd hildon-thumbnailerd-old echo "#!/bin/ash return 0" > hildon-thumbnailerd