AE 6.1 M060: Copy/Paste makes screen jump

We have been dealing with this, on and off, since 2013. When working in AE the users are copying and then dragging content from one location within a table to another. Using copy/paste with CTRL+C and CTRL+V reduces the jumping but the screen still does jump. Or pasting content within a new list item makes the screen jump. The user then has to scroll down to the original location to insert the copied content. I have opened a case with PTC but no solution as yet. Does anyone have any idea as to what would be causing the screen to jump? Has anyone else experienced this? HELP!