So I just bought a Helix. It's used but in pristine condition. So my first question is about expression pedals. I already have an extra line 6 expression pedal but I was wondering if my ernie ball volume pedal would also function as an expression pedal for helix? just wondering... but my main question has to do with connecting to my lap top. When I connect the Helix via usb cable to my laptop, my laptop doesn't recognize it. So I can't register it with the license manager or with Line 6 Monkey. More importantly I won't be able to download and use the edit software. Is this normal and do you have any suggestions? I have a MacBook Air, for the record, and when I had the pod hd500x I had no problem connecting...