Probably been asked a few times, so I'll throw it out there again. Its Monday morning and our support team tells you that the database seems to go up and down several times during a 30 minute period on Saturday night. Users were complaining of using the application and getting the dreaded spinning hour glass. But, a check of the alert.log and other Windows logs shows no errors, no trace files, and no downtime on the database. What's your preferred tool for after-the-fact diagnosis of the issue? This is on a 9i system but I don't have it hooked into grid or cloud control. Foglight from Toad? AWR reports (assuming you were in Grid or Cloud)? Other good tool? -- //www.freelists.org/webpage/oracle-l