I just purchased a home that was built in the 1940s. There are multiple areas with cracks in the ceiling that seem to indicate that it was finished with drywall boards ~16 x 48" and the joints were not taped. No plaster covering either, simply jointed with drywall compound without tape. I'm considering covering it all with 3/8" drywall, but I really don't want to remove the crown molding... I despise popcorn ceilings. If I do drywall it all, can I use liquid nails to hold the new drywall in place? Then I wouldn't have to cover nail holes... All thoughts appreciated.