[Zope] Problem with nested dtml-in

I'm having trouble with nested dtml-in. The outer ZSQL returns the coordinates of a zip code as zlat and zlong. The inner ZSQL takes zlat and zlong as well as Range and Otype as arguments. When I run it I get: Error Type: Bad Request Error Value: ['zlat', 'zlong'] If I hardwire the inner one with just zlat and zlong, I get: Error Type: Bad Request Error Value: ['Range', 'Otype'] If I hardwire the inner one with all four keyword arguments it runs fine. Here're the relevant lines from my DTML Doc: <dtml-in zipCoord> <dtml-var Range><dtml-var zlat><dtml-var zlong><dtml-var Otype> <dtml-in orgZipRadius> Trace line prints fine when all four arguments are hardwired or inner ZSQL is commented out. Bill.