[geeklog-devtalk] trackbacks

[Jon Lawrence]

Hi,
I'm having a play with trackbacks on one of my sites.
I've successfully setup a test trackback comment. But, I need to delete it - 
as I say it was only a test :).
When I view the article, I see a link to delete the trackback comment. When I 
click on this link I get nothing - litterally, just a blank page.

By adding exit('here') in various places, I see a problem with the 
require_once('XML/RPC.php') in lib-pingback.php. Having exit before the 
require_once displays, having exit after doesn't.
Now I'm confused, RPC.php is a library file (ie a selection of classes and 
functions) as far as I'm aware there is nothing in the that does anything 
unless called by a function - simply requiring it should make anything 
happen.
Commenting out the require for RPC.php allows me to delete the trackback 
comment.

Does anyone have any idea where I can start trying to find out what's 
happening here.

Jon