Hi Michal,
I have the same problem with similar hardware (Neoware EON4000). Try using 1.3b9.
See this post
http://forum.m0n0.ch/index.php/topic,2054.0.htmlThe release notes for 1.3b10 indicate the base system was updated, this might have something to do with the problem.
"updated base system to FreeBSD 6.3-RELEASE-p1"Regards
Colin