Mike, I'll look into that, but just so I can clarify... I have multiple rules:
RewriteRule ^([a-z]+)/([a-z]+)/([0-9]+)$ index.php?req=$1&action=$2&obj=$3 [NC,L]
RewriteRule ^([a-z]+)/([a-zA-Z0-9]+)/(.*)$ index.php?req=$1&action=$2&obj=$3 [NC,L]
RewriteRule ^([a-z]+)/([0-9]+)$ index.php?req=$1&action=$2 [NC,L]
RewriteRule ^([a-z]+)/([a-z]+)$ index.php?req=$1&action=$2 [NC,L]
RewriteRule ^([a-z]+)$ index.php?req=$1 [NC,L]
Unfortunately, my js includes look like this:
<script type="text/javascript" src="
http://www.blah.com/dev/sources/account/invacct.js"></script>
And it's picking up the rewrite on those and causing problems.