To some of you, this is old news but, to others just starting out in PSP...its something that you really should know.
Having too many fonts installed on your system can cause PSP to load slower since it has to load all the fonts. PSP can use any font that is not installed just by opening the font file you wish to use by double clicking on it and minimizing it to your desktop. That font will now show up in the font list in the "text" dialogue box.