Late Wednesday, Apple released an iMac graphic firmware update on Wednesday to resolve a startup and wake from sleep hanging issue. The iMac Graphic FW Update 2.0, a 699KB download, “fixes an issue that in rare cases may cause an iMac to hang during startup or waking from sleep.”
The update requires Mac OS X 10.6.7 to install and run and can also be located and installed via Mac OS X’s Software Update feature.
If you’ve tried the update and noticed any changes, let us know in the comments.