I have an error which occurs only on our Test server, where a bit of AJAX code is being chopped off at 256 bytes, but not when run on developer workstations.  I was able to find the error by running the app in Firefox with its Error Console open.

 Error: syntax error
Source File: http://.../AdvSearchHome.aspx
Line: 1
Source Code:
var ctl00_ctl00_MainContent_ContentPlaceHolder1_SalesDetail_Criteria_rfvPartNbr = document.all ? document.all["ctl00_ctl00_MainContent_ContentPlaceHolder1_SalesDetail_Criteria_rfvPartNbr"] : document.getElementById("ctl00_ctl00_MainContent_ContentPlaceHol

^^ Notice how the line is chopped off at 256 bytes. I'm guessing it should look like this: 

var ctl00_ctl00_MainContent_ContentPlaceHolder1_SalesDetail_Criteria_rfvPartNbr = document.all ? document.all["ctl00_ctl00_MainContent_ContentPlaceHolder1_SalesDetail_Criteria_rfvPartNbr"] : document.getElementById("ctl00_ctl00_MainContent_ContentPlaceHolder1");

Has anyone run into this? This is obviously the WARP panel testing to see if it has an IE browser and deciding how to refer to the element.