Quote Originally Posted by goba
Umm, yes I know ControlCenter and I tryed with Pointer acceleration and Pointer threshold combinations and this is not a solution for my problem. I need speed and accuracy, so I need also an option to arrange the amount of hertz for ps/2 port/mouse. Is this posible somehow?

Anyway, thanks for your help, Stephen.
A quick google search turned up this and there were a couple of pages that mentioned xset m ? in the XF86Config file for mouse acceleration.