How can I mark a question as answered when I've managed to determine the solution myself and posted it as a reply to my own question? I marked the "My Question is Answered" checkbox, but it was ignored when I submitted my reply. (I am the only one to have posted to the thread).
There isn't a way to mark your own response as the answer. I will have a moderator mark your question as "assumed answered."
One possibility would be to add a follow-up post to the thread in question and - in here - ask the forum moderator in charge to review your solution and mark your initial question as "assumed answered".
If you give the link to that thread, I can post an "Already answered" message, and the you can use that to declare the question as answered. Too simple to be true?
Thanks for the offer Claudio, but an Adobe Administrator has already looked after it for me. All sorted!
Well, I'm glad there was an even simpler solution.