Any idea how often the HR20 will "refresh" the images that show up on its menu? I just added a folder & new picture to the My Pictures folder on my computer but it is not showing up on the HR20 yet. I did the manual "Rescan content directories" on the Twonky software but it still hasn't updated on the HR20. I don't want to have to reboot the HR20 or my laptop each time I add a new item to the folder. Anyone else experience this?