Hello again - I hope it's ok to keep the subjects separated in different threads.
I have tonight put together my Apple monocrome monitor - filter caps had gone - and unfortunately I still experience the same weird graphic issues I was observing on my LCD monitor. It looks like one vertical line is missing.
Please see below, can you help me? I believe the switch on the motherboard is set to monocrome (it doesn't say which is which but in this mode it seems more suitable for the screen).
Text mode seems ok.