Mouse over with multiple desktops

[mad.psy-intist]

Hi, I am running Ubuntu 10.04, my video card is an ATI Radeon HD3200. When I hook up my tv to my laptop via an HDMI cable, I am having an issue in the multiple desktop configuration. The audio and video work great in both the cloned desktop mode, and the multiple desktop mode (the extended displays cuts my laptop image in half though). However, when I am using multi-desktop, if I mouse over (or drag a window) from display one to display two, I can not bring my mouse back into the first display (it doesn't matter which display is which, tv or laptop). This is kind of annoying as it makes running multi desktops pointless.

Thank you.

[petaloid]

I am also having the same problem.

I have a HP Pavillion dv9825nr with an NVidia 8600 GeForce, and I've managed to get sound an video on a Sony Bravia HD TV with HDMI.

However the only problem is I cannot get from the TV screen BACK to my old screen when I dual screen.
How do I fix this issue?