Corel 7 crashing when I try to change fonts of text

I've used Coreldraw for about 25 years.  All of a sudden, on my best PC, it crashes when I attempt to change the font.  It has worked fine for years.

I've tried reinstalling Corel -- just the main drawing program.  Same result.  

7 still runs fine on my home PC which is very minimal compared to my office PC.

Any ideas?