I've been getting a white screen when posting to this forum. I'm working on fixing this. For now, here is the work around.
when you post, and then see a white screen - your message has already been posted. Just use your 'back' button twice. Usually, you can jump back twice by right clicking on the < key and selecting the second URL.
I'll add a screen capture in a bit - so that the procedure is clear.
Hopefully, I'll get this debugged and fixed in a short time.