David posted earlier on the release of the new Dell Management Pack, this pack has had a number of issues some which were actually caused by problems in OpsMgr which have now been addressed in a hotfix.

Unfortunately, it is not that obvious in the documentation about some of the things you need to do to take full advantage of this release so I want to point out a really good blog post from Kevin Holman on the product team that talks about some of these things

http://blogs.technet.com/kevinholman/archive/2008/08/11/updated-dell-mp-released-3-1-a01.aspx