Thanks, but no luck. I have more or less solved my problem but installing AutoCAD 2008. Everything works fine when using 2008. I appreciate your response
I have 2005 running on a Dell laptop with a Dell bluetooth mouse I use for traveling (Vista OS). I have not been able to use the 'wheel-depressed' pan function. I think I need to delete the Dell driver and let Microsoft control the mouse. The dell driver may be overriding the ACad settings...