I'm currently experiencing a problem with my exchange server. If I don't defrag and reboot the system it has the tendancy to crash on me. I wish I had a clue on what is going on. I check the event viewer after I reboot the system, but there is no entry on errors just informationals. At this moment I'm running the Exchange Health monitor and the Exchange Load Monitor. The only thing that gots my curiosity is the on the health monitor the processor and memory are spiking when no load is being process. If anyone out there can help please do.