I have a similar problem. When my d0 was bad, I at least got the front panel lighting up and colored red, to show it was not booting from modchip. Now, randomly after weeks of working, my box boots normally (or tries to, since it doesn't have the original harddisk and my new one doesn't have the original files) and the front panel does not light up at all (no red X, no HDD\LAn Activity lights). Any ideas why it's doing this?