First time I have ever seen this problem.
First up, a short background summery on this UPL.
When I first turned it on I noticed the fan was a bit loud and made a mental note that it would need replacing.
I took a quick glance at the screen and saw that the UPL application was not running.
Turned it off and thought, here's another one with a dead hard drive.
Having restored a another UPL with a dead drive, I expected it to be a routine repair.
A few weeks later I ordered a 512 meg compact flash card and a adapter board.
Fired up the UPL and, this time, took a close look at the screen.
It looks as if the LCD was rotated 180 left to right.
I opened it up so I could check it over, check the motherboard / replace the CMOS battery.
I found (4) 1000uF @ 6.3V caps had bulged and 2 had leaked, replacement caps are on order.
Once I replace the caps I will continue my troubleshooting.
Because all IO (except keyboard) is handled on the main R&S made board.
Not sure where this will lead to, but I do have the 2 other UPL's worth of parts to swap for testing
(About a year ago took 3 R&S UPL's, working & not working, and made 1 good one out of the 3.)
I will post more information as I find out what is going on.