Test starts but will not complete

[IanNJ]

I have successfully set up a webpagetest server running version 2.6 and I am utilizing the IE8 AMI (ami-406f9429) as my test agent. After fixing some errors in my locations ini, I am able to run a test but it never completes. I get the page "Test is partially complete (1 of 1 runs).
This page will refresh every 30 seconds until the full test is complete." indefinitely. Also, the waterfall images are broken, but the screen shots are working as expected.

I see some POSTs coming into the server but then it immediately goes back to getting work:

[29/Feb/2012:10:52:01 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:01 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:01 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:01 -0500] "POST /work/workdone.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:09 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:09 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:09 -0500] "POST /work/resultimage.php HTTP/1.1" 200 2 "-" "urlblast"
[29/Feb/2012:10:52:09 -0500] "POST /work/workdone.php HTTP/1.1" 200 - "-" "urlblast"

Thanks in advance for your help.