My Xbox is getting a bunch of video errors and artefacting - black dots, long pixelated bits of colour splurting out of my avatar, missing pixels and such.
I've tried two different HDMI cables in different ports, but still get the same thing. Both cables work fine when connected to my PC and my PS3 on the same TV.
I've also tried changing the display settings about on my console, but to no avail. Is my (under a year old) Xbox's GPU dying or is there a fix?