Hi Chaps,
Really grateful for getting back to me.
I’ve got another systems/boot drive on my 2009 MacPro. What I decided to do was to upgrade to Maverick,
install the latest Blackmagic desktop video (I was a bit unsure as it only gave the option of 4K) and crossed my fingers…all went well and worked.
Didn’t want to to this on my usual start up drive as I’m running Media Composer and didn’t want that to have any issues!
Thanks again.
Danny