ColdFusion error on front page

I get the following error on ET's front page:

Error Occurred While Processing Request

Error Diagnostic Information

An error occurred while evaluating the expression:

user_agent = #HTTP_USER_AGENT#

Error near line 1, column 27.

Error resolving parameter HTTP_USER_AGENT

ColdFusion was unable to determine the value of the parameter. This problem is very likely due to the fact that either:

1. You have misspelled the parameter name, or
2. You have not specified a QUERY attribute for a CFOUTPUT, CFMAIL, or CFTABLE tag.

The error occurred while processing an element with a general identifier of (CFSET), occupying document position (1:21) to (1:58).

Date/Time: 06/21/05 22:38:15
Browser:

 

I get this one intermittently with ET -- not other sites though. I always run the latest version of Firefox. It clears by itself after a day or so and in the interim I use IE if I have to. No one has really given me a satisfactory answer for the problem yet but heh...wth

 

Same issue here... intermittent (maybe once or twice a week), ET only, Firefox 1.0.4. However, no more browsing with IE for me... not worth the risks. I either pick a sub-URL from the suggestion drop-down menu (such as http://www.elitetrader.com/[b]vb[/b]) or bypass the front page altogether and head straight for the forums. One or the other usually works.

 

Well, I'm using the latest version of Firefox. I agree it's strange that it's not sending a useragent string. Must be a bug in Firefox or something an extension did.

If it was my site, I'd do something like
<cfparam name="HTTP_USER_AGENT" default="no_agent">
<cfif http_user_agent is "no_agent">
Show basic version of page
<cfelse>
.............