Photoshop Elements: panorama creates unexpected results

hi,
To avoid problems, follow these guidelines when taking pictures for use with Photomerge Panorama:

1.Images should overlap approximately 15% to 40%. If the overlap is less, Photomerge Panorama may not be able to automatically assemble the panorama. If images overlap by 50% or more, it can be difficult to work with them, and blending may not be as effective.

2.Use a consistent focal length Avoid using the zoom feature of your camera while taking your pictures.

3.Keep the camera level Although Photomerge Panorama can process slight rotations between pictures, a tilt of more than a few degrees can result in errors when automatically assembling the panorama.

I think this may solve your problem.

I always do all of the above and have never had this problem before. something else is wrong. Any ideas?