PDF Printing 11g APEX

Hi,
On and off for the last wee while, I have been fighting to configure PDF printing with APEX in my 11g instance. Specifically I am always producing PDF files of size 0 bytes.
I am running 11g on Windoze and have BI Publisher 10.1.3.2.1 installed. The instructions are easy enough (I got it working when I was running 10g!), but I cannot get it working this time :-(
Can anybody point me the way of error logs for both APEX and BI Publisher so I can have a dig and see if I can find anything wrong.
Thanks.

Graham,
When setting up your 11g database, did you perform the post-installation tasks, particularly enabling network services? Since APEX reaches out to BI Publisher through http, you'll have to enable network services when setting up the database, because in 11g, that's disabled by default.
Here's the link to the documentation:
http://download.oracle.com/docs/cd/B28359_01/install.111/b32006/postcfg.htm#BGEJJIHE
In case the link doesn't work, it's chapter 4.5.6 Enabling Network Services in Oracle Database 11g, of the Database 11g installation guide.
Regards,
Marc

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