I had this problem last week and thought it was my computer. I should check the feedback forum more frequently. I was trying to quote and reply with a long post and my browser kept locking up each time. I was getting so fed up typing the same message over and over that I finally wrote it in my email so I could copy and paste it. The only way I could get my post to go through was to not quote the post I was responding to.

That's exactly what happened to me.