.load() not loading

.load() not loading

 OK, so last night this all worked fine, but now when I load another page on the same domain, it will not load.


Response Headers 
HTTP/1.1 200 OK
Date: Fri, 22 Jan 2010 18:11:34 GMT
Server: Apache/2.0.52 (Red Hat)
X-Powered-By: PHP/5.2.12
Cache-Control: no-cache, must-revalidate
Content-Length: 501
Connection: close
Content-Type: text/html
Request Headers 
GET /test/nothing/ajax/dash.php?q=/test2.php HTTP/1.1
Host: biometemerge.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)
Accept: text/html, */*
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Referer: http://www.biometemerge.com/test/nothing/
Origin: http://www.biometemerge.com

I appears to be sending something, Content-Length: 501, but nothing is in the response body.
The page it is getting content from is loading (and sending content) when I go to it directly. Any idea why this isn't working?