Reporting Financial Ratings

I'm running into 'CLS-compliance' problems trying to use characters such as "+" and "-" as reporting fields. For example, Standard and Poors ratings have these characters to indicate a notch between main letter rating categories. I have reports that need to display distributions of these various ratings in column charts. However, the X axis labels refuse to print because of these characters!

Any suggestions? This is an awfully common type of labelling in this business!

Thanks

Try Char(43) instead of "+" and Char(45) instead of "-".