I am using Windows 7 and have probs with laptop Toshiba and cursor jumping. A previous thread explains to go into the Mouse Props and reduce the sensitivity scale to 0. However there is no such tag or description as far as I can see in the M Props. What am I doing wrong I want to desensitise my mouse pad. I know that my keyboard is working properly and that an external mouse works ok. This is what I am now using but it is inconvenient. Thanks in anticip....ation.