What's to explain?
It's dead.
My screen had been remaining black after startup. It got to where I had to restart six times before the screen would work. So I sent it in for repairs. When it came back a month later, it worked like a charm.
And then, yesterday, it shut down. Now it won't even start up. It's just an iBook shaped lump. No sleep light. No harddrive noises. Not even an AC input light on the plug.
Is there anything I can do short of sending back for more repairs and being computerless for another month?