Bloody windows, now my monitor is locked thinking its DVI is asleep and wont work, only in VGA mode. Ok so its not actually a WIndows 7 error, either graphics driver or monitor.
So my monitor will now only work in VGA analog and not DVI digital, as it wont even recongnise the monitor on DVI and its a standard non PNP in analog cos the edid is corrupt and it thinks the DVI is sleeping. Monitor cost me enough and its less than 2 bleeding years old, sent the last one back with exactly the same...