Hey... It's working
I also was having the same problem a few moments ago and tried to pen a reply but gave up in frustration because there was a password box that kept on popping up even though I was logged on. No matter what I did, I could not get rid of it - so I logged off.
I logged back on 30 seconds later and woot... It all looks good.
Now... don't just stand there - go grab a beer and celebrate.
PS> Ooops... Spoke too soon. I just tried to update my profile... The avatar seems to have been uploaded (shall know if it works properly when I post this reply) but the signature... I can't update this because it tells me someone else with the name Harko is logged on. Strange, I am logged on as Harko.