I'm using the gnome3 desktop as packaged by https://launchpad.net/~gnome3-team.
On my two monitor setup (14'' laptop, 24'' attached monitor) I can't place any window near the center of my seccond monitor.
Some guy made a video with the exact same behavior:
The bug reported at https://bugzilla.gnome.org/show_bug.cgi?id=690804.
Do you stuck with this problem?. Any workaround?