Hello,
Thanks again for your fast response.
Yes, I have purged the SEF URLS and the 404's in JoomSEF control panel and manually purged the jos_redirect table in MySQL to be sure and I still get the duplicated URL's no matter what I do.
JoomSEF core is working, but the VM extension appears to be creating these duplicates due to the different ordering.
This did not happen though in version 1.3.3, so whatever changes have been made to the core have affected the Vm extension by the looks of it ?
Nic