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 6744 days, 23 hours, 42 minutes, 59 seconds ago and in 6519 days, 23 hours, 42 minutes, 59 seconds ago!!!