I do not have the 'Force 1024 x 768' clicked, and it gives me the option to change the resolution size, but every resolution option can't be clicked.
Here is what I mean:

My monitor(s) can support all of the listed resolutions, but the game won't let me choose any of them. I tried 4 different monitors.
Anyone have a solution? (couldn't find any info about this problem on the forums)
I'm using version 2.3.07 beta, but it was doing the same thing on the release of CapLab that I originally downloaded.