Over the last few months my own Microsoft Small Business Server 2008 system started locking up - hard freeze with no events of any kind logged anywhere and the only solution is power off/on. It seems to be random and unpredictable but also consistently happens at least once/week. A week ago I installed the latest NOD32 Small Business Edition (the same thing I use) on a very stable SBS 2008 server for a customer. Within a day, it froze in the exact same way. I've since removed NOD32 from both and my server is now stable for the first time in weeks. I'll find out if my customer's server is OK within the next few days. I followed all documentation as far as exclusions on a Windows/Exchange server and what engines to disable within NOD32 but it made no difference. I find other people complaining about the exact same issue with NOD32 and also with a Trend product I don't use when I google for help. There appears to be no solution but to uninstall. Can anyone help?