G'Day Paul and all,
This is what works for me........
Yes that little script comes up and when you try to log on you get the script up in the top left corner on a blank screen and at bottom left it says DONE!
At this point use your back arrow to get back to the original sign in page, which may appear like you still need to log in but infact if you click on any thread you'll find you are signed in and active.
Cheers,
Mitch