[Zope-dev] First call to external method after restart fails

Hi all, I have an external method that takes 3 params. After I restart Zope ( running on Linux ), I get the following error on my first call... Error Type: TypeError Error Value: rmlToPDF() takes at least 3 arguments (0 given) All subsequent calls work fine (i.e. a refresh in my browser, and no more error, my external method works ). I restart Zope as root. Anyone ever see this before? thanks, Ted