Well this is an anti-climax...
No joy on my MacBook Pro, Win 7 laptop, or Win 8.1 VM running on my Mac. In all cases, the uploader won't recognise the connected Prime, and with Windows, the drivers won't install as that software can't recognise the Prime either.
:sad:
Feel for you VK! Time to get my guitar out, Zero phase delay.
Have sent email to Meridian support giving details and expressing frustration. MQA ready?
Thanks Soundserge... I bought mine a year ago! Maybe it's too old and knackered to keep up with the timing precision?!