Originally Posted by Q
It needs to be checked in the list of supported resolutions in the Nvidia control panel. It is not included by default. That's likely the cause of your problem.
It wasn't in the list of resolutions by default (lowest was 800x600) but I had added it to the list at another occassion.
I didn't know this could be a problem honestly, could you perhaps elaborate a little on why it might be the cause of my problem and if there is anything that can be done about it?