Here's what I had to do...
I reinstalled AMT 2.4.1 and then it would work, so
I renamed AMhost to AMhost old.exe. I then reinstalled
AMT 2.5.0, then renamed AMhost to AMhost NEW.exe.
Then renamed AMhost OLD.exe to AMhost, and NOW
everything works...
Something in the new AMhost won't let it run on my PC.
The AMhost that is in 2.4.1 works perfectly, even with the udpated
instruments