If you try to do anything to the files remotely it will lock the system up and will need to be rebooted.
bmreen, that is strange are you sure at some point a tech with a virus didn't plug into the system or put the media card in a laptop? As its been told to me and from what i can find, its typically a windows virus that spreads to network media, although it can't "run" in a linux environment like the 7100, it will still continue on its journey when it is mounted on a windows machine. On that note we had one that Samsung tech support ended up destroying the MP because it was active on the NVRAM and would re-write itself onto the processor even though the system re-writes the shell everytime on boot. That was the one that messed my laptop up beyond repair.