Shaddows - 11:53 am on Sep 14, 2010 (gmt 0)

if you went graybar you probably scored a penalty or a PR-filter.

Most likely, you added outbound links that Google thinks you sold, or you had existing outbounds to sites Google now suspects of buying links.

Less likely, you are suspected of buying links yourself (significant IBLs are from other grey-barred pages)