[Joseph Wright recommended asking this question here.]
This question has been closed as off-topic because the underlying problem has been determined to be on Adobe Reader's side. Now I've tried a fix for AR and it works great. I wondered if the question should be re-opened and answered accordingly, even though it's a solution outside of (La)TeX. Questions regarding other popular auxiliary tools like TeXnicCenter or Lyx are answered here, too -- so why not one on Adobe Reader?
Considering the open way I worded the question in the title and the text, the fix would definitely answer the question appropriately.
Edit: From the faq:
What kind of questions can I ask here?
If you have a question about ...
(La)TeX related software and tools like BibTeX, LyX, LaTeX editors, viewers, and converters
I guess AR is a "viewer"?