When I owned a smaller sized all in one printer/fax machine, at home, the fax machine worked like it was supposed to. When I bought a larger sized all in one printer with fax, the fax part of the machine will not work at home. Help!! I have already checked with my internet/telephone provider, the Dell computer people and the HP customer service people. It seems like everyone is missing some detail that is keeping my fax from working. The printer has been set up properly. I was told the bandwith is not large enough on my phone line. HELP!