Control Center -> Peripherals -> Mouse -> Pointer acceleration and Pointer threshold and "xset m ?" in the XF86Config file are the same commands, aren't they? With these commands/options we can change only the dynamic resolution, not the base resolution which I want to increase. Long and extended Google search returned tuneps2-utility. But as a total Linux n00b (see picture left), I don't know how to install and how to use this thing (yet).