Can I “turn off” the rich editor?

I unchecked “Users should use the visual rich editor by default” and I still get the so-called “rich” editor. For me, it is a PITB editor!

I use the include page plugin a lot and it wipes out the formatting so I have to hard code it in. The rich editor changes the “<BR>” to “<P>” and they don’t work all the time.
Also, if I add php into the post, I can’t edit it a second time around because the editor has changed it into html or something else – some weird combination, half my code and half the literal output. Even in HTML view the code is not in tact.

Needless to say, I don’t like the rich editor for advanced usage in posts and pages.

Thanks in advance,
Kathy