By simply editing the [fonts] heading in the Pronto.Ini
in the Windows "folder" Directory to read like the following, you will enable all the fonts you need:

[fonts]
0 = pronto, 8, *
1 = pronto, 10, *
2 = pronto, 12, *
3 = pronto, 14, *
4 = pronto, 16, *
5 = pronto, 18, *
6 = pronto, 6, *

Note that the 0 number font MUST be 8 or the actual program will display itself with too small a font.
Size 4 fonts are virutally unreadable, but are possible. But you must add these smaller fonts to the end as I did with number 6 being size 6. Number 7 could be size 4 or 22 or whatever, etc. Have fun.

Tom -

While what you say is true, every other font size will not totally work on the Pronto itself. If my memory serves me, when I tried this, all the special codes (i.e., pretty much anything except letters, numbers, and basic punctuation) would only disply on the emulator, but not on the Pronto itself.

You May be right. I admit that I haven't actually seen if it TAKES in the Pronto itself. I wish they would make it so, soon.

This is all covered in the Pronto FAQ. You can only enable font sizes that are already mentioned in the .ini file. All others will NOT work. For instance if you add 6 point it will show up on the remote as 8 point (the smallest possible). You can also get other font STYLES to take effect on the Emulator, but once again it won't work on the actual Pronto.

Also take note that the additional font sizes do NOT include icons -- just basic alphanumeric characters.