>From the stack trace, it would appear that "Preferences
printAlternateSyntax" was true. 
>Could you have been testing the >>>>alternate syntax in that image
somewhere prior to filing 
>in the new change sets? Also, does your SqueakDebug.log indicate why the
debugger was trying
>to open in the first place?
>
>Cheers,
>Bob

Hi Bob,

Ohhh ... yes printAlternateSyntax was set to true. Now it works. 
Thanks a lot !!!

Torsten