Brother HL5250 vs. Cups (Again)

[Jonathan Ryshpan]

When I try to print double sided to this printer I get a single page
reading:

        ERROR NAME;
            stackunderflow
        COMMAND;
            pop
        OPERAND STACK;

I almost always see this when printing anything double sided from
Firefox or from Acroread, but not when printing from Okular or
LibreOffice.  There are other weird problems, but too erratic to 
report.

System is Fedora-17 fully up to date, running on x86_64 hardware.  The
ppd file appears to come from:
	foomatic-db-ppds-4.0-31.20120103.fc17.noarch
        
Has anyone else seen this?  What's the problem?  How can it be fixed?
Any ideas on how to debug?

Thanks in advance - jon