I only just purchased this and have made just 2 pots and both tasted great and even with grinding it didn't take too long. My issue so far is that I can't get the strength button to work. Nothing happens and there isn't any help in the manuel. I'm willing to think it might be something simple that I'm missing but maybe it just doesn't work. Assistance please? I paid for the features and I'd like them to all work, especially right out of the box.