The problem seems to have fixed itself with time for me, I havn't come across it or managed to reproduce it yet.
Also I am able to update my blog again too, so whatever was causing this was causing that too...
Cheers. d:
I opened my mouth to the devil... just came again after a few pages of smooth browsing (apparantly more than the other times that I complained about the bug), it struck again...
So to answer you Fquist, it's pretty randomly timed, after a few minutes of browsing (or maybe a few pages of browsing).