bind to a text view (Tiger/Leopard) and save to file

I need to bind to a NSTextView based on the selection of an NSTableView. The NSTableView can be anything you want, the important thing is that the selection of this loads different text in the NSTextView. For example, you could have 10 rows in the table view. The text view would be empty at first. You might enter data in one or more of the text fields, and when the app is quit it would be saved to an xml plist file. The NSTextView data must save to a file, likely as an NSString. I've been having some trouble with getting this to work on Tiger, it always crashes due to some NSAttributedString error, below. The problem is that the data must be saved as an NSString in an xml file. Must use bindings to bind to Controller Key selection and Model Key Path of the name of NSString or NSAttributedString variable. #0 0x92c0107c in _NSRaiseError #1 0x92c00db8 in +[NSException raise:format:] #2 0x93c38610 in _NSAttributedStringFromValue #3 0x93c51bc8 in -[_NSTextPlugin showValue:inObject:] #4 0x939ac84c in -[NSValueBinder showValue:inObject:] #5 0x939ab9f0 in -[NSValueBinder _adjustObject:mode:observedController:observedKeyPath:context:editableState:adjustState:] #6 0x939ab5fc in -[NSValueBinder _observeValueForKeyPath:ofObject:context:] #7 0x93c4e884 in -[NSTextValueBinder _observeValueForKeyPath:ofObject:context:] #8 0x939a3cdc in -[NSObject(NSKeyValueBindingCreation) bind:toObject:withKeyPath:options:] #9 0x9379bac8 in -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] #10 0x93787d7c in loadNib #11 0x937877d4 in +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] #12 0x937deca4 in +[NSBundle(NSNibLoading) loadNibFile:externalNameTable:withZone:] #13 0x9386eb68 in +[NSBundle(NSNibLoading) loadNibNamed:owner:] #14 0x9386e908 in NSApplicationMain #15 0x0000efa8 in main at main.m:13 ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Mac Cocoa Tiger Leopard Universal Binary.