I've been having a lot of problems starting up the HD BB 2010 version lately. My computer says it does't recognize the Hard Drive sometimes. By the previous posts, everyone has said that it could be my USB cable and I thought that was true until today when I stumbled upon a fix. My printer was also connected to the Coomputer via a USB connection and happened to look up and it was turned on. By instinct, I turned it off because I wasn't using it. When I did this, the BB HD booted up immediately. Evidently there is a setting somewhere on Windows that will only allow me to access so may USB ports. I have no problem booting the BB HD 2010 up now. Life is funny that way. Hope this helps someone out there in BB land.