Unfortunately you can't totally turn off the reformatting vs.net does.
There are some options to turn alot off, but it always does, even in
vs.net 2003 some still happens. Whidbey is supposed to be the end-all
solution where you can stop it totally.
Does <br></br> work? Couldn't remember if I tried that before....
Otherwise, you may have to do your final pass after doing your design
work, at the last possible minute...