What do I do about laminate flooring that is bucking up?

You will have to first determine where the moisture is coming into the room that is making the flooring buckle up. Until you determine where the moisture is making it's entrance you'll still be at square one.

Twink is right, the moisture has to be fixed first. If the floor does not dry and lay flat after several days you have no other option than to take it up and start over. Be sure to use a proper vapor/moisture barrier under the laminate.

Moisture is definitely a cause, but the buckle is coming from the floor being to tight somewhere. Due to swelling from moisture. Most likely in a door way. Under the casing