blank page using wpbook in facebook

ubercrawl – your facebook app is here:

http://apps.facebook.com/edublog/

Yes?

That is trying to link load this url:

http://ubercrawl.com/blog/

In an iFrame, but for some reason is not getting any response.

If you try to load this url, you will also get no response:

http://ubercrawl.com/blog/?fb_sig_in_iframe=1&fb_sig_iframe_key=c51ce410c124a10e0db5e4b97fc2af39&fb_sig_locale=en_US&fb_sig_in_new_facebook=1&fb_sig_time=1263403222.8392&fb_sig_added=0&fb_sig_api_key=e5fef32211c4b70f9be662f49d7789e8&fb_sig_app_id=282530558941&fb_sig=94f6e49722365bce767968e39aae9b91

Do you have access to error logs for your server? It may be that error reporting has been disabled so no error is returned to the browser.

According to the response headers, you’re getting a 200 ok response from apache, using PHP 5.2.12.

Are you running WPBook 1.4, or 1.4.1?