Value Zero in dynpro fields

Hi,

I have a question concerning the handling of Dynpro fields of type CURR.

It is not possible to enter the value 0 in those fields. When I do so, it displays an empty field after hitting return.

Also the value 0,00 is considered as the initial value of fields of this type. Every expression like "if .. is initial" considers a field with contents 0,00 as an initial field.

How can I solve the problem so that I am able to enter 0 as a valid number as well as the value 0 is not considered as the initial value?

Thanks for your comments,

Steffen