gnome panel hangs in right side of the screen

Hello and thanks in advance.

Since I'd updated to karmik have the same problem, my gnome panel hangs, still seeing all but don't leting me start apps or enter on the tasks opened. It matters when I have a huge number of tasks opened, about 8 to 10. As instead of it I still have available some utils on the panel, like CPU system monitor, I use it to enter on task list and kill the panel, sometimes restore all ok, sometimes not, showing just the panels clean of launch icons and tasks. I put a terminal launch icon in the desktop for the same thing, kil the panel, and the ressults are the same. In the worse cases, when panel restart cleared, I just make a ctrol-alt-sup to restart, and always shows me a window telling me the panel is hanged and asking if i want to restart instead of it, answer yes and system restart normaly.

It's not a seious bug for me, as I can enter in sucesive windows opened in work area and close saving changes, but obviously sucks. The only "strange" thing I have configured is the task panel in the right side, instead of down or up, to maximice work area. From now i put the panel down to prove if in some days the problem does not show again, but I think it's not the point, it has to work in rigth-left sides if the option is available. I look for the same question in this forum but didn't see nothing similar, so I want let you know, maybe somebody have the same problem or want to try task panel in rigth or left to confirm if it is a real bug of the version or just of my config.

Thanks everybody you make a great job here.