Complete National Geographic CD set

Contrary to many comments I have read on the web, I have had no major problems with running this set of CDs using WinXp.

However, I do get a initial popup that says :

“You are running in large font mode. This may cause some text and some controls to be displayed improperly in this application”. Can someone please tell me what that means?

Also, is there some way to make the icons on the bottom task bar more legible (I can hardly see them) — these are the icons labeled “next page”, “next article”, etc.

Maybe I should add that I use WinXP with SP2 included.