Lately, I seem to have a problem log-in into Gmail from my Internet Explorer, this happens both at work (IE over Vista) and at home (IE over XP). 

I get this wonderfully informative error message: 

Doing a couple of “refresh” helps sometimes.

But what really helps is using FireFox instead of Internet Explorer- This problem does not happen in FireFox.

Some of my friend and colleagues have reported the same problem.