Hi. Just bought the Pod studio gx. Instaleed Pod farm from website. Set it up. Authorized my mac and the gx. Messed around with the heads, cabs ect. Closed pod farm. Opened up Amplitube metal amp simulater. As soon as it opens it ask what interface to use. I select gx. All the sudden the light went off on the gx. Then i went to open pod farm and its saying i need to authorize again. It shows my mac is still authorized but the gx isnt showing and there is a red light on the gx now. Tried un plugging and plugging back in. No change. Please help. Thanks.