Why is my ipad 2 not response when I touch the digitizer?

I would avoid buying digitizers on eBay, as I'm sure most of them aren't run through a quality control check. I bought one on eBay a year ago for my iPad and about 2-3 months later dead spots started occurring on the digitizer. When I received it, I thought it felt kinda flimsy compared to the original digitizer. I recommend buying from a quality provider like etechparts.com as they have weeded out the Chinese companies that provide garbage products. I just recommend spending a little extra money and get the iBic digitizer. All parts from etechparts come with a 90 day warranty.