[johnm]

There are two versions of Companion - one for MS and one for MSPro.  These are not interchangeable/compatible and I'm wondering if you have the right combination of app and Companion?

I have both versions of Companion and they each work fine with their respective version of MS/MSPro.

Hi Graeme, How can I tell the difference?
 After spending so much time on this I`m really fed up.I`m thinking of deleting both programmes,reloading and giving it one last chance.
There is one thing mentioned in the forum that struck a chord, that avast anti virus had reported a threat and moved some data to the "chest".Now I remember mine did the same the same x2 yesterday but I didn`t take notice of the threat string?
Companion comes up with an error message immediately  I try to load it "no device fond on any usb port and when I cancel it the programme loads but refuses to allow alterations in the "connections" tab,it`s stuck in USB.
 Mobile Sheets is stuck in a loop trying to load a song.
Regards Johnm