Error trying to run a test on Relay Server

Hi,
I am trying to run tests on Public_Dulles location from my private instance.
This is my locations.ini (I have obfuscated the key that Patrick has provided us)

[locations]
1=Local
2=Public_Dulles
default=Local

;
; These are the top-level locations that are listed in the location dropdown
; Each one points to one or more browser configurations
;

[Local]
1=Local-URLBlast
2=Local-WPTDriver
label=Perf_Machine

[Public_Dulles]
1=WPT_Dulles_IE9
label=“WebPagetest.org - Dulles, VA”

;
; These are the browser-specific configurations that match the configurations
; defined in the top-level locations. Each one of these MUST match the location
; name configured on the test agent (urlblast.ini or wptdriver.ini)
;

[Local-URLBlast]
browser=IE 9
latency=0
label=“IE 9”
;browserExe=pagetest.exe
;key=TestKey123

;
; For a wptdriver configuration (chrome, firefox), the browser labels here
; MUST match the labels used in wptdriver.ini
;

[Local-WPTDriver]
browser=Chrome,Firefox,Safari
label=“Chrome\Firefox”

[WPT_Dulles_IE9]
browser=IE 9
label=“WebPagetest.org Dulles, VA - IE9”
relayServer=“http://www.webpagetest.org/
relayKey=***************
relayLocation=Dulles_IE9

When I try to run a test by selecting the Dulles Test location, it throws the “Error submitting url for testing” error.
From my minimal knowledge in PHP, It looks like the RelayTest function call is not happening because of $req_rkey.

if( @strlen($req_rkey) )
RelayTest();

Any ideas on how to resolve this?
Should I configure anything other than the locations.ini file with the relayserver details?

Thanks & Regards,
Mohan

This has been happening to me also. Has anyone found a solution for this?