I have two ELO touch screen monitors (one above the other). The top monitor wasn't working several months ago (and I thought it was a bad power cable); but that wasn' t the issue. After being turned off for several months; yesterday it was plugged in and configured (in the display settings) to be an extended top monitor; and it worked again. This morning it is back off and isn't working. I moved the cables into different ports and it still didn't work. I tried plugging the cable for BOTH touch screen monitors into another monitor (that I knew worked) and it wouldn't load a picture (only the self test screen). When I put the cables back in the ports both monitors weren't working. I then switched the cables (thinking maybe it is a bad card) in the ports and then the bottom monitor was working again.
The top monitor has sound and will beep when the screen is touched and the mouse will disappear when moved up to the top of the screen.
I am so confused as to what the problem is; and I need some help! I thought it was the monitor, then the port, then the cable; but then why would it work sometimes?
Thanks in advance!!