It seems that every other time I hit Start the left half doesn't load at all, and the background is colorless glass. ... just like white aero set to max transparency. Huh. Anyway, leaving and coming back tends to make it work right, and I haven't seen anything else glitch like that. The tiles work right even if this happens, but nothing else renders. I can type to search if this happens, it's just the buttons.

Learned more about the glitch.

> Direct cause unknown, but once triggered, happens again every time wallpaper changes.

> Left half buttons on Start menu don't load, and background is glass, like white Aero from win7.

> Closing and reopening the Start menu will temporarily fix.

> Breaks again once wallpaper changes.

> It was a one-off I guess, it fixed once rebooted and I haven't seen it again since.

Is anyone else seeing this?