In chrome, the FancyBox opens it should, I can scroll through the PDF, close it, works fine... But it won't open again, instead the whole site crashes, even source pages if open in a different tab.
I've followed the troubleshooting, disabled all other plugins, removed all other .js scripts for other applications, resorted back to the original Twenty Eleven theme, and still freezing after first open.
To open it again, Chrome has to be completely closed and re-opened. It's only Chrome not playing ball, Firefox and even IE work!!
Any thoughts or suggestions would be hugely appreciated.