Oddly I can reply in some thread but not others and on the ones I can't reply I can manage the topic with options like change the title ?

Other threads work just fine.... Example of one I can't reply to tonight is Robs Daytona project thread

I could not reply in the other can't post thread and oddly having made this one I can't reply yet I can edit?

EDIT: and now after a Mark All Threads as Read I can post in Robs Daytona thread but still not in this one other than an edit !!