When I got this, I loved it, but now, after using this device for 7 months, the " on" switch doesn't work. The only way I can turn it on is to plug it in to get it to turn on, and then unplug it. Very inconvenient and frustrating. I would love to be able to have them send me a new one but the return option has passed. Anyone else out there having this problem, or is it just me?