iDVD opens but does nothing

The only way to exit is to force-quit the program.

As described by Apple Discussions postertanjathedvdfan: “iDVD is open but not on the screen.

Fixes

Repair permissionsUse Disk Utility to run a permissions repair on the hard drive.

If a permissions repair doesn’t work then follow the remaining steps to reinstall iDVD.

Delete and reinstall iDVDManually remove the iDVD utility from your Applications folder.

Optionally you might update while booted into safe mode (by holding shift at startup).