cracks in ceiling?

The ceilings in my house have been artexed., and there are some unsightly cracks running across the ceiling side to side. On further investigation, it appears that the cracks are on top of paper tape that has been used to cover the joints in the plasterboard prior to artexing. It seems that the glue on the back of the tape has dried out, therefore lifting and creting cracks along several ceilings.
What would be the best , easiest and cheapest method to rectify this problem?