I am drywalling over horse-hair plaster. In almost all of my corners on one side doesn't have a stud to attach the drywall to. Is there anything I will be able to do? I did liquid nails the sheets of drywall when I hung them, but some of the sheets still have some play. When I try to send a screw in the corner it goes in so far then stops. Would drywall nails work any better? Should I trying laying some glue in the corners? I saw on the interent they make tabs or stops, but i wasn't sure if i could use them after the drywall is hung? Or will the drywall compound hold it good enough? Thanks in advance!!