Ralph,
Hit Ctl+F5
Very strange this.. the Christmas scene shows up on my SeaMonkey (Mozilla suite) browser.. clearing the cache, reloading the page, Ctl+F5 all do nothing. And.. this is a recent occurrence.. It was "back to normal" just a few days ago.
The logo shows correctly in FireFox, Opera, and IE and SeaMonkey on my laptop.
Edit..
And after all the testing on other browsers.. it is now correct here as well.