Aaaaargh!!! Bloody phones..... attempt to respond no.7 (I hate phones). Id just give up, but its hard to walk away after putting in the effort that I have already for naught
Id be very, very surprised if the video card did any damage. Most of the time any remotely modern pc/os will autodetect and use a supported res and refresh rate. I had a 1960 that ended up as a pc monitor for about a year. After about a decade of being in storage I tried to use it on an a1200. This gave me nothing but a loud constant high pitched squeal, and about an inch of display on far left side of the screen.
Long story short, most likely the monitor already had issues that didnt show up until the screen had been on for a while. While the picture is ok for low res screens Commodore monitors werent great build quality.
