On rare occasions the Axe FX has emitted some sort of digital white noise and had the display either go completely green without any pixels, had every pixel fill in, or some sort of jumbled combination. It's a different kind of sound and display malfunction every single time. This has happened very rarely, maybe a half dozen times since I received the product last fall, so I've always assumed it was some random glitch or misuse and not really consulted FAS (there was one email FAS never responded too). It happened again yesterday, and I'm wondering if anybody else has had this happen. It doesn't seem to be any permanent damages, because I'm always able to restart the Axe FX II and everything goes back to normal. There's white noise, a garbled display, then everything is peachy upon restart. The Axe FX II sits in a rack plugged in via USB and to some studio monitor. It's no longer being used with "live" guitar rigs, but I couldn't imagine something like this happening in the middle of a gig for someone else.