having fun with 2.0 but here is what seems like a rewrite bug. I have Wp installed into a directory
site.tld/abc/
and it all works great until I create a category named
"abc methods"
after which a click on the sidebar link for "abc methods" category archive and WP gives a 404. Other cats work fine... just the one that mimics the home dir is unfindable. Any category that starts with "abc" will cause this to happen.
I have permalinks set to /%postname%-%post_id%/