Comment 60 for bug 878492

I am running Ubuntu 11.10 AMD-64, applied all fixes, tried various work-arounds, rebooted a few times, and pressing F10 still displays first menu list. As something of a newbie with Ubuntu, I'll be honest and say that I can't understand quite a bit of the jargon that goes on - what's gtk? unity? 2D vs 3D?
At the end of the day, all I want is for Ubunut to allow me to press F10 and have it passed through to the app - in my case VirtualBox running Windows with Visual Studio debugging step being F10.
Please can someone tell me how to achieve that. Thanks.