Using the unity interface i have no problems with my dual monitor setup. However, when i load gnome 3, windows placed on my second monitor don't act right.

I can only place windows on the left and right hand sides of the second monitor, with a 'gap' in the center where no window can be placed. The second monitor seems to be divided into 3 sections, 1 (left), 2 (center), and 3(right) where windows can be placed in 1 and 3 but not 2. If i try to drag a window from 1 into 2, it 'jumps' to 3. Likewise if i try to drag a window from 3 to 2 it 'jumps' to 1.

I am running an optimus enabled laptop, nvidia geforce 540M. Drivers are not installed, and running bumblebee.

This does not happen on my laptop monitor, which I assume is the designated primary monitor.

The second monitor is connected via VGA.

This does not happen if i load with unity 3D.

I hope this is clear!!

Thanks for your help!