Comment 3 for bug 365210

I agree.
If I mistakenly choose a resolution larger than my virtual maximum, it rightfully asks to log out (but without an explanation). Then I cancel the erroneous choice (I don't log out) and choose a setting that fits in the virtual maximum, but the same message keeps showing.
Closing & rerunning gnome-display-settings solves it. (Which makes this bug the least one, among many more bugs in gnome-display-settings since Jaunty upgrade).