Hi, We just found a very subtle bug in our own application, which was caused by what I think is a surprising behavior of ZSQL methods. Actually, it's a feature of the query results. What we see is that they acquire the environment in which they were created. Essentially, our code did this <dtml-in query0> <dtml-let result1=query1 result2=query2> <dtml-with result1[0]> <dtml-with result2[0]> <dtml-var returned-by-both-query0-and-query1-but-not-query2> </dtml-with> </dtml-with> </dtml-let> </dtml-in> (Of course, the real setting is more complex, e.g. the dtml-withs are in a separate dtml-method, called within the let) To our surprise, the dtml-var picks the value of the variable as returned from query0. This is, I think, because this value is acquired by result2 where it is defined. I've checked this by accessing the variable as an attribute of the query-result row. Thought you'd all like to know, Shai.