Hmmmm, I don't have any answers for you and that's the way I usually do mine here at home, but I've never experienced what you're describing. Cyber-glitch, maybe?
Sometimes when we're on the island and using the hotel internet, I do a segment at a time and post it and then use the edit feature as many times as I need to finish my thoughts. Even as wordy as I tend to be, this usually works as an alternative option. <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" /> <img src="http://www.traveltalkonline.com/forums/images/graemlins/handshake.gif" alt="" />