This thread is working fine, now.
It was highlighted, and nothing I did (accessed it) changed that.
When Pop posted to it, and I read it , it became un-highlighted.
When Voom posted, it was highlighted again.
Then, when I read his comments, it went back to regular.
I wouldn't use
Mark Forums Read feature unless I was really fed up!
But, that's just me.
Anyway, since it's working like a normal thread, maybe Iceberg will delete it.
Doesn't serve much purpose beyond our idle comments.