OK - here it goes.
Trying MacDoc's suggestion.
Turns out to be no better.
First try - 11 second wait, then a blank page
Second try - 11 second wait and then a blank page
Third try - the post finally went through.
But with SeaMonkey I have another problem - I get this message as if SeaMonkey thinks the information should be encrypted. It shows http not https in the URL window, so I don't understand what that is all about.
OK, let me take the checkmark out.
Ah...that fixes that issue, but now I'm back with the long delay and the blank page coming back even though this is just an edit not a new post anymore.
I give up.