I hope I can fix this excellent Viewsonic G90FB 19" CRT VGA monitor.
At the moment the image is blurry, but when I went to adjust using the front panel controls, none of the buttons work currently.
@jameswoodcock that is an exceptional monitor. i suspect you're going to be in for some serious repair work given the blurry image - however, it's probably worth it given those really nice specs!
mercifully, there is a service manual available for that model
https://archive.org/details/manualzilla-id-7354295/
@jameswoodcock nice work! what ended up causing the blur?
'
@vga256 no idea, just warmed it up for a while running the unreal demo (1 hour). Turned it off and on again and has been fine so far, so fingers crossed it carries on in this fashion!