We need some guidance. We had a shell home built and are having trouble installing the drywall. The studs on the walls and the ceilings are not even. We did install a sheet in the living room and it popped off. We are using 5/8" drywall for the ceiling and 1/2" for the walls along with drywall screws. I need to know if there is some way we could even these studs out?

 

You can add some 2x4 ripped in half alongside the existing studs, bringing them into a plane surface for attaching the drywall. Screw or nail them in place.

 

Rent a laser level that can project a vertical line. Set it up about 3 feet in front of the wall or less than 6 inches in front or you will block the beam while working. Measure from the beam to get the wall face vertical.