My Sql Monitor was working perfectly for months. Then the base monitor and web server crashed. After they got it backup, the monitor has started performing strangely. It collects machine data at 15 second intervals, but sql server / database data is only collected about once every 15 to 20 minutes. If I click on the 10 minute time range, I get 'no data available'. I've tried restarting all the services, re-creating all the monitored servers, etc. Nothing helps.