I'm quick replying to this. I didn't know the difference either so I never used the quick one. My computer is slow so I always used the post reply one. Just found you cannot put the smilies in the quick. Plus you cannot preview it. Guess I'll stick to the regular one...
PS -- after I posted this I saw my smilie came up...I used the old fashioned one I use when typing and it came up a real smilie...unreal. Modern technology at it's simplest.