I installed Ubuntu LTS 11.04 and Ubuntu 12.04 on my Dell M5030. My mouse moves choppy and laggy.
I do not encounter this problems on Ubuntu 10.04 on this machine.
I think this bug may com from Unity. But I am not sure how to fix this problem. Could anyone help me solve this problem or suggest ways to fix it?
May be I missed a important thing in my question. In my case, there are no lag memory problems when use. If i use my touch-pad, mouse cursor move normally. It seems to happen with all my usb mouse.