No problem, I looked around for a permanent one but didn't find anything that does it as well as Ultramon.
I have the paid version of ultramon on my main rig and it is excellent - just after a free alternative for use elsewhere....
Hmmm - not quite the feature set I was after - thanks anyway. The feature that I most want from Ultramon but for free is the option to disable the secondary screen. The reason is that I have a new setup with a PC screen and a projector where the projector is the second "screen" which is fine when the projector is on, however when it's off it's easy (ish) to lose a window on the secondary screen. (I know about Windows Key + Left arrow, Right arrow, Up arrow etc to move windows about but humour me). Maybe there is a way of doing this within Windows itself?