2 Displays fried by Onefinity X50

I have had my X50 for quite a while, though life has gotten in the way so it has only seen about 25 hours of use. I have the 10 inch touch display which was working and I swapped it out for a 24 inch monitor I had laying around. Last I used it I was playing with the 14w laser, trying to dial it in. In any case several weeks later I got to use the X50 and my monitor is no longer working. Okay, I can live with that, it may have seen better days (about 3 yrs old). So I plug the 10 inch display back in and nothing. No display at all. I tried everything, pulling all the wires, rebuilding etc…nothing. I took the 10 inch and hooked it up to another source…still dead. So today I plugged a brand new monitor in (32 inch) and it works. So my question is what is killing my monitors. The 10 inch had been stored in its box and literally had less than 20 hrs on it. My garage is rarely heated, but never drops below 10 C, humidity is in the 30% range. Any ideas? The 10 inch display should not be dead. Any help would be appreciated. I should note firm ware is up to date.
Thx
Rob