Hey, quick question. I just got a replacement vip722k for my defective vip722. Every couple days the fan will come on (pretty loud fan) and it will not ever stop running on it's own. Almost like the fan gets locked up. The only way I can get it to stop running is to reset the dvr and it will be good for a day or two. The 722k is very cool to the touch, in a well ventilated area, and the high temp. is 110º. The fan will literally run for days, (even if the dvr is in sleep mode) unless I reset it. Does this sound like a defect? Anyone else have this? BTW, it's NOT the hard drive, I know the difference, you can feel the air coming out of the sides of the unit. I wouldn't sweat it but it's a replacement for one I owned.