When you first type out a message in either quick or advanced reply mode, no problem, but if you preview the message, the you lose all the paragraph breaks and you have to manually go in and add your breaks again.
I've had the same problem for some time, I asked about it on vB.com but just got told that it was due to a modification I put on my board - which I know it isn't, because I've seen the same problem here on vB.org...
I sure wish I knew how to fix this, not sure what mod, perhaps when we finally go to V3.6, we'll see. You'd think someone would answer or know the answer. Thanks, rg sends!