Hi guys, after I updated my hd500x last night , did a flash and clear my old patches and back to factory. I started creating new patches. When I first added the amps, I notice noise from the background even if it's a clean amp with no drive. Noise gets louder with amps like tread plate and all. I Don have connection issue, from guitar to hd500x then usb to laptop. I'm using monitor headphones connected to the pod.Didn't have problems in the past, the noise is really annoying although adding a noise gate help abit but it wasn't there in the first place. Pls help, I really down out here. Thanks!