The following is from the ClarisImpact 1.0v4 Important Information file:
Fonts
This version of ClarisImpact tests for corrupt fonts when the application is first opened and when opening the application when fonts have been added to your system. ClarisImpact builds a 'Claris Fonts' file which is used to display fonts in their actual typeface in the Font menu. If ClarisImpact encounters a bad font, or one that it cannot correctly add to the Claris Fonts file, an alert is displayed indicating that some fonts may be bad. These fonts will be listed in a 'Bad Fonts' text file in the Claris Folder located inside your system folder. These fonts will also be displayed in Chicago font in the application's Font menus. We suggest removing or replacing these fonts from your system before using ClarisImpact. Refer to the manual that came with your Macintosh for instructions on how to remove or replace these fonts. Once these fonts have been removed or replaced, throw away the 'Claris Fonts' file, also located in the Claris folder, and open ClarisImpact. ClarisImpact will automatically create a a new 'Claris Fonts' file when the application is opened.
There may be some fonts that work properly in ClarisImpact and still fail our tests. The only difference between these and other fonts is that they will be displayed in Chicago font in the Font menu. However, we suggest performing the following simple tests on these fonts before by using them in the application:
1) Create some text in ClarisImpact and apply the font. If the application unexpectedly quits, this font is bad and should be removed or replaced immediately.
2) If the application does not quit when the font is applied, create multiple pieces of text, apply several different font sizes, and print the file. If the font appears on screen and on paper correctly, then there is no need to replace or remove this font.
Note: If you have a font that fails our test but functions properly, please send the font to Claris Technical Support so that we can update our test for future releases of ClarisImpact.