kcontrol blank

I've finally managed to produce some working Trinity Mandriva packages (available from http://www.autotrain.org/mdv-kde/mdv2010.2.html). However, i've got a problem with kcontrol, it starts up fine, but it doesn't load any configuration options, so the main config panels are blank.

This could be being caused by one of the mandriva patches, rather than being a bug in the Trinity core, but i'd appreciate some suggestions as to what I should be looking for.

Other 'lesser' configuation screens, eg "Configure Desktop" and "Configure Panel" seem to work fine.

Thanks, Tim W