I have some weird problems with minimizing and restoring to a running program tray. I have this issue with Windows Media Player and VLC. When minimizing them, they slowly minimize to the tray - taking almost two seconds - you can just watch the open windows shrink slowly to the bar. On restoring, basically the same thing a slow return to the original size, however after the slow restore completes, Windows Media Player will essentially restore again at the correct speed (it sort of does a quick blink. These are the only two applications so far that have this problem.
Vista 32, Dell XPS420 Quadcore