I do not use my middle button to pan, so I set the mbuttonpan=0.  The goal is to have the running ESnaps menu pop up so i can make a selection from it transparently when in the middle of a command such as move or copy.

When I set mbuttonpan=0; however, the middle button appears to act more as a right button.

Can anyone shed some insight on this behavior?

I should add that I am fairly sure it was working with my previous standalone installation but since I installed a trial version of Premium to test the lisp functionality before bringing DraftSight into my shop It seems not to work.  Mayhap I modified some setting inadvertently or perhaps ill-advisedly.

FOLLOWUP:  I performed a reinstall, copied only the "application.xml" file from the old UI and the problem as manifested is gone.  Still not clear what settings I had changed to mess it up.  If I figure that out will post.

The setting that turns the middle button into an "Enter" is:

Tools > Options > User Preferences > Mouse Options > Currently Processing Command : "Right-clicking when a command is in progress" is set to "Is the same as pressing Enter"

If this isn't  a bug it should be.  Right click options shouldn't be messing with my middle button.