The machine was hand built by a mate and is pretty old! The monitor works in safe mode and I've tried standard svga settings on 800*600 16 colour, but anything beyond that and the mouse icon flashes on and off and makes the machine impossible to use.
I think the monitor is a budget IBM model but unfortunately I don't have any details.
It did however work with windows 95, but unfortunately I never noted the settings!
Yes its IBM but as for drivers I cant find any.... but since the monitor is pre 1993 it would not suprrise me if it will not support anything greater than 800*600 16 colour colour. Sorry I cant help more.