The copy function rarely works, or works badly on my iPad 2 with screen protector. So I bring up a website, press down on a word, and one word is outlined in blue and I see two knobs. Usually, no matter what I do, I cannot move the knobs in order to expand the selection. I have tried a hundred times. It is extremely frustrating, to the point where I'm thinking of returning my ipad. (I have 2 weeks.) Then, sometimes, it works very well. Is there some secret? Could my ipad be deficient. Does it depend on the web site?