Safari 4.0.1 on Software Update
Well... I wish I didn't have to reboot my box, but again this morning, I didn't really have a choice. Software Updates had Safari 4.0.1 on it and the release notes say:
This update addresses incompatibilities between Safari 4.0 and certain features in iPhoto ‘09, including Places and Facebook publishing.
So in typical Apple form, it doesn't give any real details, but still... it's Safari, and that means it's time to agree to the update and reboot the system.