My cube keeps shutting down or puts itself to sleep.. I have tried relocating the DC-DC board as the Apple website suggests. No luck. I remember that someone here said it might be an oversensitive capacitive discharge switch on the cube and that there was a thicker gasket!? available from Apple. Apple UK deny all. Strange that!! Also I remember someone saying that a piece of sellotape placed crucially might do the job. I noticed that the switch electronics are only connected to the main gubbins by a 3 pin plug. Has anyone tried disconnecting that ( no glowing switch - but hey!) and using the on/off on the Apple LCD. All help appreciated Cheers Rossi