Yeah, me too. I followed the instructions from searching
previous threads and disabled the Visual Text editor for my profile, then added hard breaks.
Still no joy.
I was able to get it to work IF I posted directly from Windows Live Writer, but if I re-open that post and edit it for any reason from within wp-admin, the line spacing that existed previously vanishes and my post is all messed up again.
I often have multiple images in a post and need to have a paragraph next to each image. Then, I need a new paragraph to go with the next image. This often requires a few hard breaks if the text isn't exactly the length of the image.
Or, sometimes I just want a longer amount of dead space...for effect.
I know this is free and I hate to complain but I really wish I could just have a few line breaks when I need them!