Reposting in different period, document and Controllingdifferent currencies

Hi

When we do the reposting of a document by KB11n (which is having a transaction currency and controlling currency different), the new document is picking up the reposting dates exchange rate and there we are facing the trouble of getting different amount either in Transaction currency or controlling currency(as it is picking the new exchange rate of reposting date).

Have u faced this problem, if yes is there any solution to get the same amounts of the transaction date, again during the reposting time

Thanks