Please see What could keep a javascript from loading properly on a page? In the header it shows that it is coming from IIS 6.0. How accurate is this information? Also this vendor (which is the worst I have worked with) made us go through a huge server switch process. Did they "upgrade" to W2003 IIS6.0? What would be the reason for a "new" server to be running this old of a version of IIS? Am I missing something?