EBS Console freezing or needing to restart SBS 2008 once a week or so? Look here for your answer.
Thanks to Chris Puckett and his team for working on this to get a resolution. We have seen this primarily with Trend Micro (our primary anti-virus product) but it is happening with any product using TDI, so if you are getting similar behavior from your server(s), get this hotfix! See the SBS blog post.