by Paul » Tue May 25, 2010 1:57 pm
Ok, I have put the second monitor underneath the first one. No problems with picking an output then. I've also put the second screen on both sides of the first one, no problems. So, the problem only appears to exist when the second screen is on top of the first one. What I see happening with that arrangement (I hadn't noticed before) is that the output selection screen in some situations pops up on the top part of the first screen. Sometimes it's empty, sometimes it contains actual output values.
Did you notice that?