James, I just spotted a bug in the JS when displaying a saved member popup. This happend on both FF10 and Safari 5 on Mac (not sure abut IE or browsers on a PC):
Click a saved user to popup their details, try to close the popup by clicking X in top-right corner - doesn't close. You can close by clicking away from the popup box, but doing this prevents you from clicking any other saved member thumbnail.
If you need more details or me to test on mac, I'd be only too glad to help,
Cheers, Paul A