$HTTP_SERVER_VARS

Heya folks, I've got a little problem here, maybe you can help me out. $HTTP_SERVER_VARS["HTTP_REFERER"] is supposed to point to the referring webpage, if it exists. As is $_SERVER["HTTP_REFERER"] and $HTTP_REFERER itself. However, it seems that I do not have this variable available on my server. I do however have this funky variable called "HTTP_WREFERER" which returns a strange string like value like below: VLMHAALPTCXLYRWTQTIPWIGYOKSTTZRCLBDXRQBGJSNBOHMKHJYFMYXOEAIJ I've searched PHP.net, and practically every PHP site on the Internet with no luck as to what this is supposed to represent. I've even tried to find out how I could "enable" the HTTP_REFERER variable, since it seems that it is disabled or something. I am guessing that WREFERER is some kind of encrypted version of HTTP_REFERER, but I don't know. It changes everytime, so it is hard to say. I'm running on PHP Version 4.0.6, if that helps. Thanks, Kyle Gibson