I have started a reply to your post here, but I’m going to put it on my thread because I know you are reading there. It got longer and longer (imagine that), and I have an appointment, so I decided to finish it later and post this short note to you right quick in hopes you find it.
The only things I can think of that would prevent you being able to post on my thread (or anyone else’s) would be
1) you weren’t logged in at the time or
2) you didn’t click on “save” after typing in the Comment box.
I hope this helps!