Steps taken.
Installed trial version of Accuface - started Iclone 8 [latest] and started standalone Accuface which opens nicely displaying ugly me . 
Then load character to Iclone from trial project .
Next step open Motion Live from plugin drop down menu. Nothing Happens !!
However the Motion Live settings panel 'will ’ open and I played with opacity but that did not reveal the main interface of Motion Live.
Also the Motion Live plugin does not appear in CC5 plugin menu. Is it supposed o be there ?
I further tried the above steps with my own CC5 Char without success.
I thought to reinstall MotioLive plugin but it appears this is included with Iclone 8 installer and I dont really want to try reinstalling Iclone. 
.
Suggestion Please.
Hi…
A common reason for when Motion Live won’t appear is when you have previously run iClone on a dual screen setup and Motion Live was moved to the second screen.
If this could be the cause here, please try re-connecting your second screen and move everything back to the main screen.
If that isn’t the issue, please contact Reallusion Support using the form HERE and they will help you resolve it.
Thank you - that was the issue and who would have thought so !
I actually have three screens - Main is my laptop with a couple of 24inch attached.
I’m aware they can cauee problems so NORMALLY I return all windows to the Number 1 laptop before exiting a program.
Thank you again and maybe your advice will help someone else if they strike a similar problem.
Thanks for letting us know you have resolved the problem. That is good to hear. 