Is it just me, or is the menu nearly unusable due to the fact that the mouse pointer is always disappearing?
I've tried it (regular install, not using galaxy) on my main machine (Dual AMD@3GHz with 12GB Ram and an old Radeon HD5450 as Graphics Adapter running Win7Pro x64) and my Laptop (Lenovo T410 with 8GB Ram and Intel HD (core i5) onboard Graphics running W7Pro x64) - and it happens on both.

I've marked the second post as a solution as it at least hinted me to the use of the keyboard ;)
I think (at the moment) that the disappearing mouse pointer is intended by the developers - and so far there doesn't seem to be an option to deactivate it for the menu...

Ok, Alt-Tab wasn't working for me and I always returned with the pointer still missing - but by testing that I realized that the right mouse button makes the pointer visible again.... still that is a pita - and that the key controls are working... mh, sigh- somehow I'm getting the expression that the menu was developed with a certain controller and platform in mind.

P.S.: If there won't be any further posts and solutions that are addressing the problem I will mark your post as a solution (even if I consider using the keyboard for the menu more as a workaround IMHO, but it was good to know that it is an option)