The SBS folks have always liked Trend Micro but CSM Version 3 tested their faith. I decided to eat my own dogfood and installed CSM V3 in February. I was somewhat successful but I had some problems with the Security Dashboard hanging up. Virus checking and updates worked fine. Recently I applied the Service Pack and the Dashboard was a little bit better afterward. When I tried to configure the Messaging Server, it would not let me in. I tried a variety of small fixes but finally decided to reinstall. I tried to just reinstall the Messaging Server but it did not work so I reinstalled everything.