ok thank you. now we can eliminate that from the equation.
turn off the Axe. turn it back on - is it processing sound like normal?
if not, is it still the dry sound, or is there no sound at all? double check your guitar cable connection and jack it is plugged into.
if that seems fine, i would just go to Utility and page to Reset and press Enter on RESET SYSTEM PARAMETERS to get the system settings back to default. it will take too long to type out everything you need to check.
please keep the USB unplugged so we know your computer isn't sending any data.