thin black line on some images

[Bethany Lee]

I have seen this thread somewhere and searched the archives but couldn't find it:
I am using FM 9 (all patches installed), and when I print to PDF, some images appear with a thin black line on the right side. I had this once before, and fixed it (so I know there's a simple solution), but my IT guy did something to my computer and now they are back. Does anybody remember the solution to this?