The former opened the latter very easily [using the latest filter]. All text and a couple of pictures were there but the text appears written over an 'orange' background. I've had this a few times before and it is most annoying.

The text is readable and the file, when printed, is without the orange background.

Questions: 

What causes the colour and how do I delete it, if I really need to do that? 

Is there some sort of filter I can add?

PS: There are so many exciting new items in v201 that I am continually amazed.