Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Big Disappointment

I got the kindle for my birthday today. It worked except that it couldn't make its wireless connection (my cell phone works fine so I know I'm not in a dead zone). I then bought a book using my computer and moved it to my kindle via usb. The title shows up but I get an error message when I try to read the book. Now it doesn't work at all, including the power switch. The tech support person had no success and said that they will be sending me a new one in a few days. Because of the price, this was my only birthday gift. I feel like my whole birthday was ruined.