Printing emails no longer possible

I am using microsoft outlook 2003 under xp pro and printing emails normally and from no where a message 'runtime error occurred, line 2020 now appears every time I click print while I am reading my emails and of course I can not longer do printing under outlook. FYI I can use it under any other application. You can email me your reccomendations to peruanitosalo@gmail.com I tks you in advanced