Zooming out parts of the drawing would disappear until zooming again or typing regen, sounds like my problem as well. add to this jirky slow crosshair when within move or copy command.
You would of thought they test these things before releasing them to the public.
I was having same problems with entire drawing disappearing during zoom, which meant I was doing a regen every 5 or 6 commands. Everything works fine since I switched to a regular mouse with a scroll wheel, cord, and buttons. Still don't have my windows-style pan or zoom extents functions on the scroll wheel, but I'm way better off.
I tried that as well with a Logitech mouse, i had better control, but it was the same very slow move within copy or move command, bottom line I can't use the software, it's unworkable.
