Draftsight Drawing Display Window Freezes

I just installed and registered the latest version of Draftsight. Unfortunately, the latest has an issue wherein the drawing display section freezes once the mouse pointer is moved over the drawing. The 2018 free version worked.

I can move the mouse pointer outside of the display window and it functions correctly. I can use the command window before I move the pointer into the drawing window and the display functions as it should, i.e., zoom functions.

Any suggestions?

Thanks!