Old version colorspace problem

[H. E. Taylor]

Greetings,      
        I am using an older version of Acrobat Reader [3.01] and have 
        begun to get an increasing number of pdf files which case an 
        error dialog.
                
        "Could not find colorspace named 'Cs8'."
        sometimes       
        "Could not find colorspace named 'Cs6'."        
        
        When I use GhostView, again an older version [GSView 2.7], I
        get the following error:        
        ----------------------------------------
        Aladdin Ghostscript 4.03 (1996-9-23)
        Scanning PDF file
        %GSVIEW_PDF_PAGE: 1 6
        Displaying PDF page 1
        %GSVIEW_PDF_MEDIA: [0 0 612 792]
        %GSVIEW_PDF_CROP: [0 0 612 792]
        %GSVIEW_PDF_ROTATE: 0
        %GSVIEW_PDF_MARK: /PAGE /CropBox [0 0 612 792]
        Unrecoverable error: invalidexit in .stop
        Operand stack:
            true  Separation  --nostringval--  --nostringval--
        ----------------------------------------        
        
        Is there any way to get around this problem, short 
        of upgrading operating system and reader?
<curious>
-het


--
"If a packet hits a pocket on a socket on a port, 
And the bus is interrupted as a very last resort,
And the address of the memory makes your floppy disk abort,
Then the socket packet pocket has an error to report!"
-Gene Ziegler (with a nod to Dr. Suess)

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H.E. Taylor  http://www.autobahn.mb.ca/~het/