Bnr2-0.7.3 requires X, but this is not in the ebuild's DEPEND variable. It will emerge without X but will not run.
fixed in cvs. http://cvs.gentoo.org/cgi-bin/viewcvs.cgi/gentoo-x86/net-news/bnr2/bnr2- 0.7.3.ebuild?rev=1.2&content-type=text/vnd.viewcvs-markup thx