Maybe you couldn't get anywhere with 'use_svpvn' because it really should be 'sv_usepvn'. ;-)
Thankfully that mistake didn't extend to the code I was running :-)
Thanks for the elaboration.
Cheers, Rob
--
Any emails containing attachments will be deleted from my ISP's mail server before I even get to see them. If you wish to email me an attachment, please provide advance warning so that I can make the necessary arrangements.
