Is this what you had in mind? http://www.15seconds.com/Issue/000420.htm Jes >Can someone point me in the direction of how to make a simple version of on-the-fly graphing like this? It would be (NT) server-side. Would it be ASP, some stored procedures, perl? The data points I have are tabular, very simple flat file. >>Take a look at http://www.aecf.org/cgi-bin/kconline.cgi?KC_REQUEST=QUERY_GRAPHS