So to confirm exactly the sequence of events that you have been doing to change font size from the main POP Peeper window (the PP Window that has your Accounts pane to the left and Message pane to the right):
1) Clicking on "Messages" in the main menu each time.
2) Clicking on "Select font..." option each time.
3) Changing ONLY the "Font size" each time.
4) Clicking on the "OK" button
And the two screen-shots you have posted on the previous page in this topic are the result of doing the same exact steps above for both font size changes?
If the answer is "Yes" to the question above -- then I'd say Jeff will need to look into this further.
