Can font size of comments be changed in Acrobat Reader?

I created several PDFs using Acrobat Pro v 7 using larger comment font sizes which I set up under Preferences. I was surprised that when I opened them in Acrobat Reader v 8, the comments had not been affected... they were stll whatever defaulted size Reader reverts to. And I couldn't find any parameter in Reader's preferences for increasing the size of the Comments, only the zoom feature for the original document.

Is there any way to increase font size, change fonts, etc, for comments in Reader?

Thanks, John