Well I'm a little bummed right now. The UAS is currently randomly pressing buttons on screen by itself. This behavior just started on its own. If the screen were bad I would have expected this to occur sooner but who knows...I can't try a firmware update because these newer radios do not allow the same firmware to be re-applied (dumb, dumb, dumb)...
I've disassembled the screen to try and re-seat all of the ribbon cables going to the touchscreen. I did remove one small shard of glass (likely from the accident that made this radio available). I suppose it's possible that glass was causing some random touch information to be registered by the screen (but I doubt it). In addition, there was a light coat of an oily substance (possibly antifreeze) on the radio and even on some of the internal components. I'm hoping a quick application of electronics cleaner may get rid of any shorting caused by the oily substance?
On another note, if it hasn't been mentioned before the new dual USB hub is backwards compatible with the older 8.4 Radios (VP4/RA4).
If anyone has seen this behavior before or knows of any tricks, I'm all ears. Otherwise, I'll be calling the yard I got it from to return it...