Well, THIS ^^ is what I got after selecting the standard 'reply' button (I didn't select the 'reply with quote').
At least this morning, I only had to refresh once before it allowed me to log in.
Aside from the log in issues, I've noticed that in each sub-forum the thread titles don't contain the name of the thread starter, the date the thread was started, or number of views etc. Only the thread title, number of replies, and the name of the last respondent are shown.
Growing pains? Progress? Whatever. I'm just hoping admin can sort out these glitches, soon.