Has anyone had trouble sending a morhp book to a file using version 
2.5? Then pages all get written then I get a failure right at the 
end.  Here is the debug log...

Message not understood: isSystemDefined
19 August 1999 11:30:27 am
MorphObjectOut class(Object)>>doesNotUnderstand:
[] in SmartRefStream>>uniClassInstVarsRefs:
[] in IdentityDictionary(Dictionary)>>keysDo:
[] in IdentityDictionary(Set)>>do:
Array(SequenceableCollection)>>do:
IdentityDictionary(Set)>>do:
IdentityDictionary(Dictionary)>>associationsDo:
IdentityDictionary(Dictionary)>>keysDo:
SmartRefStream>>uniClassInstVarsRefs:
SmartRefStream>>instVarInfo:
[] in SmartRefStream>>nextPut:
String>>displayProgressAt:from:to:during:
SmartRefStream>>nextPut:
StandardFileStream(ReadWriteStream)>>fileOutClass:andObject:
[] in BookMorph>>saveIndexOnURL
CursorWithMask(Cursor)>>showWhile:
BookMorph>>saveIndexOnURL
BookMorph>>saveAsNumberedURLs
BookMorph>>savePagesOnURL
[] in MenuMorph>>invokeItem:event:
CursorWithMask(Cursor)>>showWhile:
MenuMorph>>invokeItem:event:
[] in MenuItemMorph>>mouseUp:
UndefinedObject>>ifNil:
MenuItemMorph>>mouseUp:
HandMorph>>handleMouseUp:
HandMorph>>handleEvent:
HandMorph>>processEvents
[] in PasteUpMorph>>doOneCycleNow
Array(SequenceableCollection)>>do:
PasteUpMorph>>handsDo:
PasteUpMorph>>doOneCycleNow
PasteUpMorph>>doOneCycle
[] in Project>>spawnNewProcess
[] in BlockContext>>newProcess

Thanks,

Mark