Over the last year I was battling a strange error of reverse synctex search with evince and several latex editors. Everything works perfect with synctex unless I want to do a reverse search (click in the pdf docutment and get the according tex position) on the first page. Instead of getting the correct position my latex editor always opens the file pgflibraryfadings.code.tex. While I finally found the cause of the problem, I have no idea how to solve it. The problem seems to stem from the inclusion of the shadows tikz library. Without the package included everything works flawless. I filed a bug report at sourceforge.