actually i think he might be talking about something else. I had to get mine replaced under warranty b/c the casing was shattering. It looked like fiberglass shattering..hundreds of tiny x's on the casing, kinda rough. it wasnt a yellowing or fog, it literally looked like the platic was splintering apart. I dunno if thats what it is or not man, but they will replace it under warranty if you have it it still.