Hello, I have only found one other thread about this issue, so it must not be very common.

In Creative, I like to take note of my friends' coordinates so I can visit their plots at any time. But sometimes, after loading certain chunks on my way to a plot, Minecraft would crash on me:

http://hopper.minecraft.net/help/failed-load-player-skull/

It has happened to me a few days ago, as well, but I was able to type in "/spawn" before the chunks finished loading, to save myself from another crash. Surely enough, it did work, and minecraft was running normally for me. But this time, as soon as I enter Creative, I crash before I even have time to type in a command. Because I am loaded in the same location every time I log into Creative, I am unable to play in Creative.

I have only had this problem after the "Steve invasion" on April 1st, so I suspect it has to do with player heads that were placed before that date.

Anyway, I hope this was detailed enough to troubleshoot. Thank you very much.