I am getting ready to up-grade my modem, the choices are US Robotics 56K or US Robotics 56 K performance pro controller base, is there any advantage to the controller base? Thanks Lynda http://lyndasebay.cjb.net - Users can unsubscribe from this list by sending email to 24hoursupport-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field OR by logging into the Web interface at http://web.tampabay.rr.com/spider1/24hrsupport.htm.