CorelDraw 2019 - distorting display when panning

Hi Guys, just wondering if anyone else is experiencing this:

Colour dropper selected to fill, pan into an object using the mouse scroll wheel, and then most of the content on my page disappears, leaving a small rectangle which appears pixelated and distorted.  If I use the scroll wheel pan again, it shows me a different rectangle! Not happening every time, but now has become a common occurrence. Have to close CorelDraw and just hope that it has saved what I was working on (have lost a bit of work which is frustrating!!)


Oh and of course I get the random crashing - working away and CorelDraw just randomly closes - would love to know how to avoid that too if there are any secrets out there :)

Thanks in advance for any input.