Since a new installation of the latest Ubuntu with all updates I now experience a strange mouse problem. Seemingly randomly the mouse movements will slow right down, its just like a slow motion mouse I have to wait whilst the pointer trvels very slowly across the screen. I though it was another programme running that caused the problem so I have stopped all redundant programmes in the start up. The problem however is still there and the slow mouse movement just comes and goes without any reason. I can only imagine it is another programme suddenly running in the background but I cannot seem to find out. Any ideas please?