I feel like a fool asking this but I have to. I can read the course book on my main pc but would like to be able to see it on my surface tablet so I don't have to ALT Tab between them. The 1st lesson this worked fine but when the 2nd lesson was unlocked it will come up on my PC but not on my tablet. I tried to sign in on the tablet but it still did not load. Is the book only good for the one device ??? Is it a problem with the tablet or windows 8 RT ? Or is it something I am doing wrong ? Thanks in advance