H3 Desktop Crash

Just updated to 3.05 on my H3, middle of a show, touched the screen and BAM lost the desktop.

2 Questions:

When I have a desktop crash, how do I get it back or do a quick restart, what keys are there. The backup UPS kept me running when I wanted to reboot the machine. So is there a reboot sequence and also a relaunch of the desktop. Also how do you reboot a DP2000 that hard locks. Are there some command keys to do this on both the console and the DP.

Also after the crash, I cannot delete any files. I am guessing that the crash scrambles some permissions. ANy fix on this. I cannot rename etc.

I have both a Wholehog 3 and an iPC so I would love to know how.
Related