Does anyone have this model machine? I am wondering something. The machine works great but when it goes into sleep mode, the power light doesn't pulsate. Is that abnormal? I can hear the disk spin down when I put it to sleep but the light remains steady. I know on the older machines the power light pulsates. Just curious. I'd hate to make it an issue but I like 100 percent optimally running machines. I hope it's just the way it's supposed to be. Thanks. Tom