Hi. I have a 13" MacBook, with 10.5.4. Sometimes when my computer falls asleep, the light that usually blinks while it sleeps freezes solid (lit up), and nothing will restart my computer or get it back into the operating system. To get back into the operating system, I have to manually remove my battery, unplug the power, and put it back in, and then power it on again (this must be bad for the computer... I've had to do it 4 or 5 times now). It has happened randomly. Sometimes when I leave my computer after burning a CD, sometimes just when I leave it alone. Its strange because it is not a consistent problem, but happens once a week or so. Any suggestions?