Hi Chris75,
The USB is actually connected to the USB and PodXT, not the amp. I have tried different USB ports on the PC though, and it detects the podxt. I can hear the amp and guitar fine, just when I press record I get the two error messages. I will check if there are any programs that may interfere with Mixpad. Then I will check for driver updates or see if its maybe Windows that needs to update and get back to you. Most likely will have to check tomorrow. Thanks.