Guys, Due to a back injury, I was not able to do renos on the house this past summer, so my dad flew here and did some for me. He was running out of time and wanted to get drywall up down in the basement. The previous owners had crappy wallpaper on the drywall and also had some sort of panel board glued onto it. We tried removing it but made a mess of the existing drywall. Instead of ripping down the drywall and putting up fresh sheets, he put new drywall over the old He said it would adhere with screws and with long enough screws, I can get it to stick when I can hit the studs.... WHEN I can hit the studs. For those edges that don't have a stud to adhere to, is there any sort of special screw or even an anchor of some sort that I could stick into the wall that would make the outer fresh layer of drywall stick to the old stuff? We'd like this done in time for Christmas as we want to have a fireplace down here but I'm thinking I may have to rip it all down and start anew? Your thoughts?