In Windows 7 on my work computer, I can go to
Taskbar and Start Menu properties > Start Menu > Customize...
and checkmark Use large icons to get bigger icons in my start menu. I can also change Number of recent programs to display to, say, 18 or so, which still fits comfortably on my screen.
But then at some point in the next few hours the settings revert back to the defaults, with small icons and fewer programs. This has been happening for a couple of days now, at least. (Perhaps longer, but this is just when I noticed it.)
Any ideas what would revert my settings this way? Could this be a Group Policy setting?