If you have less than 32 meg of ram, have a lot of fonts installed in Windows, you are multi-tasking and your system is having trouble printing or accessing your new fonts, you may need to adjust your win.ini file. It is a simple process and it helps the Windows resources "find" your custom font(s) easier.
Go to the Windows, File Manager. Go to the Windows directory and find your win.ini file. You can open this file using your word processor. The file has different headings such as [Windows], [Desktop], [extentions], [font substitutes], and [fonts]. Scroll down in the file to the [fonts] section to the bottom of the font list. Your new font(s) will be near or at the bottom of the list. The idea is to move it (them) up in the list for easier access, so copy or cut and paste the lines with you new font's names near the top (suggestion, paste under Arial). Go back and cut the lines at the bottom of the list if you haven't done so already. Close and save changes to the win.ini file (remember to keep this as a text file so that your system can still read it). Restart (or reboot) Windows for the changes to take effect. Now you should notice an improvement!
Choosing the correct printer driver and video driver can also prevent GPF crashes and prevent your system from "messing up" your fonts. The safest video driver is the standard VGA. For your printer driver, make sure you're using the latest version available for your printer.