Oddly, it seems to be back to the dark blue bar now (march 25, 12:00pm eastern)
3/25/2011 at 1:16 PM
Mine is back to the old way also - which in my case is good, because the "new way" went "Page not found" when I clicked on either "Research" or "Account" -- which among other things meant I could not log out, which was very bad since I was on a public computer!! Don't know if they switched back due to my complaint or for some other reason.
Switching back to the old header is the result of a bug in our code that segments users for testing different features. You'll be returned to the new header probably next week -- Lois if you have the same problem at that time, please send me an Inbox message and I'll figure out what's going on.