This only happens when im trying to put music on itunes to put on my ipod basically when its encoding or burning a cd, it automatically restarts at first it would do this within a few songs, now it does it within 10 seconds. Then i also started playing cds just to hear music and my computer would restart, i sprayed the inside to clean the dust out and it fixed that problem. I can normally use cd's now for the basic use of listening to music. But i tried encoding my cds again and it still just restarts. I have no idea why. Can anyone help me out and give me some suggestions. This just started a few months ago. I have a feeling it might be with cleanliness but i really don't know.