Gnome crashes in activities overview

Hi guys, I'm new to Gnome 3 and Gnome in general, and I noticed this today:
When I press superkey, I get the activities overview, but if I try to move windows with my mouse
(in a new workspace or just move it around), Gnome crashes, turning all of my extension off.
I usually use shortcuts for this, so I haven't noticed it before, but I know it worked when I installed it (two weeks ago).
Can someone help me with this?

Check ~/.xsession-errors for clues (or post it here).
Did it start failing after an update?

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    Looks like I need to RTFM I found it here: http://wiki.archlinux.org/index.php/GNOME
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    Regards
    Gajesh

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