Function CURRENCY_SYMBOL

Using:

If Currency IS NEW OR Currency WAS CHANGED Then
Currency.Symbol=CURRENCY_SYMBOL(Currency.Code)

I can't get this to work for the following codes:

CNY (Chinese Yuan) brings back a Pound symbol

EUR (Euro) brings back a question mark

Is there something else I need to set to make this work?

The Chinese currency problem has been fixed in build 1414. Euro symbol should work fine.