I've had my PODHD 500 for almost two years now with no issues, until two days ago. Any patch I use sounds very garbled, almost like a robot with a dirty sound, even on a clean patch. At times it even cuts out and doesn't play at all. I've tried different guitars, different cables, using all of the different outs (including headphones) with the same result for everything. I have all of the firmware updated and have tried all my patches with the same outcome. Since it's not under warranty anymore I'm at a loss, and the closest repair center is almost four hours away. Does anyone have any suggestions? I've called local guitar stores and they don't want to touch it. Any help would be greatly appreciated. I use my POD directly through a PA system with no amp. So I completely rely on it for everything I do. Thanks in advance for the help!