Just received my refurb 2720 today and it broke in 10 minutes. I flipped the switch off and heard a lovely sharp "ting" inside the unit and it wouldn't turn on again. Since I'm leaving for a 1300 mile trip in 2 weeks I don't have time to return it. I took the rear cover off and sure enough, one of the 2 ears on the switch contact broke off. It appears that when it was refurbed/reassembled someone put the hooked contacts in the wrong orientation and when turning it off it pulled one of the gps circuit board hooks off. The switch hooks were intact so I bent them toward the main unit some and all is perfectly operational now. I get home and am plugging in my planned route and I go to unplug the AC cord and son-of-a-bitch one of those copper tabs breaks too! It still powers the unit but because the rounded part of the ear is missing it is leaving a deep scrape in the plastic gps body near the copper contact. I contacted Digitech Deals through Amazon (where I purchased it) about the busted power cord. I can live with the switch as it appears to be a non issue presently but the power cord is going to be a problem as its quite hard to remove the cord with the way it digs in. What would you do?