In the error dialog it said : *** Terminating app due to uncaught exception 'NSFileHandleOperationException', reason: '*** -[NSConcreteFileHandle writeData:]: Result too large' abort() called terminating with uncaught exception of type NSException I am not getting that screen anymore to grab more of it. I had been trying to address the "all mail" and delay in gmail issues in Mac Mail. It had been processing those changes fine until the drive filled up. i made more room on the drive, restarted, reset the pram and still when I try and open Mail it opens for a millisecond before crashing & then is in a continuous cycle .. of the message that your app crashed, do you want to reopen. I saw some folks had a terminal fix for the NSFileHandleOperationException with regards to color, I am hoping someone has a fix for this one! I am using a MacBook Air running OS 9.5 and any help would be much appreciated!