I can sort of relate to the situation where I'm the only one having a specific problem. I had a huge problem that started as far back as Corel Draw 8 and I only solved it in the last two weeks, and completely by accident. I'm sure of that because I used to work in Draw 8 for the Mac and it had the same problem. I sometimes will have an image to use as a tracing image underneath on a different layer, or simply locked on the same layer. What happens is if I use the pan tool, eye dropper, or paint bucket tool, the document instantly corrupts. Portions of the art begin to vanish, but you can still sort of see the sizing handles! The more you pan around, the more of the screen vanishes and does not come back. The only way to solve the problem was to save (saving the document didn't hurt it or lose anything), close the program and relaunch, then get rid of the bitmap image. With X3, the problem got worse. The workspace would just corrupt simply because I was moving pallettes around and do the same thing. It continued with X4.
The problem and the answer: The problem was that my workspace was somehow corrupt. It's the same workspace I've been refining and carrying forward for as long as I can remember. For some reason I recently decided to rebuild my workspace from scratch, based off the default workspace. Problem solved. All the problem with moving pallettes went away, so I got excited and decided to bring in a huge bitmap image, place it in the background, then pan all over the place and it worked fine. The eye dropper and the pan one shot still don't quite get along though. In other words, if you're using the eye dropper, then press your key command for pan one shot (spacebar for me), then Corel does something where it feels like it sort of "slips", or doesn't quite grab the artboard at first, then catches up within a half second. This may also be happening with the paint bucket. I think the problem is multiplied if you hold the spacebar a la Illustrator/Photoshop, rather than just tapping it to engage the pan one shot. Otherwise, I have no more of those weird anomolies going on with Draw and this was a situation where no one could relate and people always get the feeling that someone is somehow just doing something wrong. Same thing happened recently when I couldn't customize my workspace. The answer was that Corel doesn't like it when you switch buttons on the mouse. The reversed button cannot drag icons from the customize dialog to toolbars. Switch the buttons back and it works fine.
Professional Color Separations.