In LaTeX when generating PDFs, it sometimes does not respect the margings. Add the code below to fix this:
\special{papersize=8.5in,11in}
\pdfpageheight\paperheight
\pdfpagewidth\paperwidth
I don't believe that vectors or matrices should ever be slanted, and I hate the fonts used in bm.sty, etc. It turns out there is a n easy workaround:
\newcommand{\boldvec}[1]{\boldsymbol{\mathrm{#1}}}
\let\vec\boldvec