Problem with parallel currency - changeing the amount causes an error??

Hi all,

I have the system set up so that it uses a 2nd local currency (customized as a group currency) that has a custom defined currency exchange rate. When I try to enter a new invoice with the transaction FV60 and I try to change the amount in local currency 2 so it is not the same as the automatically calculated one I get an error F5580 saying "balance in & & is too large for an automatic correction".

I tried finding the notes but some notes could not be implemented?? Did anyone had a similar problem?

Thanks,

D.