Hi,<BR><BR>I have an .aspx page which uses a bunch of webcontrols along with some validation controls. This page works on my local machine, which has VS.net installed. But the same page does not show the controls (and the form) on the development server which has only the .Net Framework (v1.0.3705) installed.<BR><BR>I have checked the machine.config file for the location of the<BR>WebUIValidation.js library and it looks correct. <BR><BR>I am stuck with this error. Any clues?<BR><BR>Thanks in advance.<BR><BR><BR>What is the error? Are the forms not appearing at all? <BR>Where are you validating? Downlevel or uplevel? <BR><BR>By default your app will validate on the client side. If you are validating on the server side make sure this is in the page<BR>at the top<BR><BR><%@ Page ClientTarget="Downlevel" Language="vb"%> <BR><BR>or language="c#" if that is what you are uging.<BR>Thanks! it helped.