I don't know if this has been posted yet, but I discovered this a while ago, but just now thought you mention it. It's easy to fix and rexplicate, but it can be very annoying.
When you're in 100% zoom mode and you have objects that have IDs past 999, this starts occuring. It can be fixed by simple scrolling that part of the frame out of view and maybe some other stuff that I don't know of at this time.
