In my preamble, I've put \renewcommand \thepart {Title \@Roman\c@part} to get the parts to print "Title I", etc in the TOC. But then in the body, I always see "Part Title I", etc. It looks like \partname is exactly what I need to set, but adding the following doesn't work even though every doc I can find says it should. Any ideas?
\renewcommand{\partname}{Title}