Dual monitors and applications with multiple windows

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http://forums.fedoraforum.org – I have a problem using dual monitors with my laptop running F17 (and Intel graphics). When I use an application with multiple windows, if the second window is placed in a monitor other than where the main application window is, I cannot click on it (clicks go through to the application showing below it). For example, I usually have Thunderbird showing on my laptop screen while I work on my external (and larger) screen. If I try to compose a new message, the new window appears on my external monitor, but I can't click on it and have to do everything through the keyboard. (HowTos)