Spool32 error

I get Spool32 errors in Win98 on specific programs only: WordPerfect 5.1 for DOS, MSWord, but NOT Pagemaker6.5 or WordPerfect 8. The error freezes whatever program was trying to print and printing is thereafter impossible. This just cropped up without any system changes. // A friend has the same error, but it happens no matter what he prints from.