Keeps rebooting when moving files

[djmat]

Setup is 3 hard drives connected to pro vision solo.
Until yesterday I was able to move files from on drive to another using usual cut and paste but since yesterday every time I try and move a file the media player pauses for a couple of seconds then reboots.
Tried unplugging and replugging in drives, firmware update but still the same.
Any ideas?

[isolar801]

First thing I would do is check the drives for errors on your PC.