Helix Maintenance Manager displays an error Can't get text item 1 of "" when first launched. Dismissing that error dialog results in a second error dialog (the variable isd is not defined) which can also be dismissed, but then HMM complains that existing plans are not valid and can not be edited or run.

Launch HMM after the Mac has booted up. Dismiss the error messages and quit HMM. Helix Maintenance Manager will now work correctly until the next time the Macintosh is restarted.

This bug is still open.

Thanks to Gib Henry & others for working with us to isolate this bug.