tsak + wheezy + e1000e = hang on shutdown

I just reinstalled my X61s yesterday and ran into a nasty bug: the system hangs on shutdown, the last line on the screen has varying content ("Will halt now ..", "No more processes ..." etc) - just like this one: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=672358 It looks like the bug is triggered by /opt/trinity/bin/tsak and the e1000e module. When I disable tsak and remove e1000e before shutdown the system shuts down as expected, otherwise the system hangs. So, is there a way to shutdown /opt/trinity/bin/tsak togather with trinidy, so that I can still have sak but the bug is not triggered? nik