This has just occurred again - BBC News derivatives timing out.
I cleared the BBC cookies in Firefox to no avail.
At first I associated it with the recent BBC problems, but, on searching for whether others were experiencing the same 'lock-out' I happened upon this thread and have rebooted both Firefox and my computer and access seems to have been restored.
As I regularly (and frequently) refer to the BBC News website this was a major annoyance.
Anyone able to provide an explanation?
What does rebooting do that clearing cookies doesn't?
Oh - and I'm using Firefox 13 . . .