I am having some issues with my arrow-keys nudge feature. Sometimes it will randomly stop working and I would have to restart the program to get it to work again, but will eventually stop working again. It has been a number of times and I trying to figuring out what could be the cause of this. I read on some forums that it could be third-party plug-in interferencem, but I don't have any third-party plugins for illustrators. At least none that I know of. I have no idea where to begin to figure out what could be interferring with Illustrator. I've also tried resetting my preferences and the problem still persist. Does anyone have any advice on what I could do to solve this issue?