I apologize if this isn't the right forum for this question. I'm a rookie R user trying to save a source file and i keep getting this error: 2007-01-27 18:02:12.195 R[175] *** -[NSBigMutableString writeToFile:options:error:]: selector not recognized [self = 0x68c8c20] 2007-01-27 18:02:12.211 R[175] Exception raised during posting of notification. Ignored. exception: *** -[NSBigMutableString writeToFile:options:error:]: selector not recognized [self = 0x68c8c20] I'm using a mac with osx 10.2. Any help would be greatly appreciated. Thanks, Brendan