We have a Mexican subsidiary whose local currency is the peso. Our functional currency for the consolidated entity is USD.  We have several USD bank accounts in Mexico that are subject to monthly currency revaluations.  One of our bank accounts was recently drawn down to zero.  The foreign currency revaluation entry posted for the month and automatically posted a reversing entry for the following month, which brought the account balance to a negative balance and keeps the account from being inactivated.  It does not seems possible to delete this entry or reverse it.  Does anyone have any suggestions?