disabling energy saving features of the cpu sounds pretty clear...
i bet if i try without that but disable the second core the mouse problem will be gone...
but i wont try coz i dont have the time to test that, more have another problem

btw...anyone knows how to fix the boot with inserted dvd only problem?
since i copied around my boot partitions (leo only for main and for tests) its occuring all the time
think the mbr or efi is damaged in any way... actually messing up with that at the moment,
would be cool if someone knows an open thread here for that