A trick I've found (because my display pic sometimes reverts to the previous one) is once you've changed your name/pic, log out immediately, then log back in again. This should solve your problem. Unfortuantely it's not ideal.
Meat Loaf 6434 days, 9 hours, 33 minutes, 46 seconds ago and in 6209 days, 9 hours, 33 minutes, 46 seconds ago!!!