Icon Placement
I had one user that I ended up with, that every time we did an OS upgrade, I would take a screenshot of her desktop icons and make sure that they were back in the "correct" [lace after said upgrades. We usually had new hardware along with the OS change as Windows environment, the new OS needed new hardware so that it didn't run like a tortoise running through mollases. She had tunnel vision, had no idea on how computers worked, but knew the steps necessary to do her job. Very upsetting to her if that changed so I did my best to avoid that as she got stressed and her work did not get done. Apparently I am patient with people, although the trouble and strife would disagree.