I have been through most of the posts on this topic and cannot get any of the suggestions to work. I have my mbuttonpan set to one and the middle button set to autoscroll. The pan works one out of every 15 times I hit the middle button. I can't live without this feature. By the way I am using WinXP Pro and a Microsoft Wireless Laser Mouse 6000 with AutoCAD 2007. Thanks.