Bed question...is this normal?

Just installed a tonneau cover on my Tacoma. During the install I noticed that the metal front piece of the bed (not sure how to describe it) is about 1/4" higher than the "composite" side caps of the bed- this pushes the front of the tonneau cover up and prevents a decent seal. Is everyone's higher than the sides or is this another "fix this" item and they should all be level?

 

Can you post a picture?

 

Will do tomorrow- it looks less obvious with the flash.

 

This is not my truck (it's from the bed rail thread). See the plastic cap on the right and how it appears level with the metal part of the bed (that runs along the front)? Mine is about 1/4" taller than the highest part of the plastic caps and therefore keeps the tonneau cover from closing tightly.