Originally Posted by HarryT
A "checkerboard" pattern most commonly means that the Gen3 can't read its firmware. Are you able to see it still via USB on your PC? If so, do a "chkdsk" on the internal disk (the one that shows up labelled "Gen3"). You need to reflash the firmware, but don't do it until you've checked to see if there are errors on the disk partition.
Well, the only time I have seen it it is because it could not read the internal non-firmware partition. For example when I tried to format that partition as ext3 I got this pattern. I have not seen evidence here that the most common cause is that it cannot read the internal firmware partition.