So this is what happened tonight. First I updated "Maintenance" - System Maintenance Utility to Ver 1.1.6. Then I ran Maintenance and the the initial "Verify Startup Volume". This generated an error and suggested a repair using "Disk Utility" on Tiger CD. Loaded Tiger CD, selected utilities and ran "disk repair". This generated a "First Aid Failed" with the following red warnings: "Invalid sibling link" "Volume check failed" Followed by : 1 HFS Volume - "Error - The underlying task reported failure on exit" Anyone have experience with this error? Any suggestions on a next step would be greatly appreciated.