Thanks,
I assigned "Do Nothing" for tilt in my Logitech mouse. At least it took care of scrolling drawing while I am pushing for Snap Menu.
It works great in AutoCAD 2007, ABS 2007, and AutoCAD 2008, but it still does not work in AutoCAD 2008 MEP. I changed mousebuttonpan to 1. You are right, this is better. But shift-right click does nothing at all. I set Mouse Shift-Click properties in Customization menu for button 3 as "Snap menu", but it still does not work.
Any ideas?
Oleg