GETPIVOTDATA formula problem with apostrophe

Excel 2010 on Win7 - Having a problem with the GETPIVOTDATA formula.

GETPIVOTDATA(data_field, pivot_table[, field1, item1]

If "data_field", "field1" or "item1" contain a value that has an apostrophe (i.e. single quote), the function returns a #REF! error. It works fine in all other cases. I tried placing those values within brackets (ex: "[Moody's]") and using the old SQL trick of doubling up the apostrophe (ex: "Moody''s"), and combining both those methods. But no luck. Has anyone else been able to solve this problem?

Thanks.