We also have had trouble with our 450 twin turbo since we got it. They tell us on the phone that they are hired by you and can't make it work better or give us a new one and good luck contacting you. Well this is my final effort. I want a working hand labelwriter like the one that quits working and someone to call me about the expensive one. We keep having to call in and change passwords to use the postage. It is ridiculous for what we paid for this machine. This is a law firm and I chose Dymo because we used it at my last job and all it did was labels and I loved it. But, we have had trouble getting this to do anything. I feel cheated.