Remember when A file comes off a CD it is marked as read only, you need to remove the read only attributes in order for CPRO to work.
****NOTE*****
After installing CPRO you must call the processor and make sure that they see the batch. this is to verify that the money is going to right account. it doenst take but 5 minutes but really helps find problems if there is one. the other day I found an issue that we were getting invalid term ID. we called the processor, it turned out that the bank had deactivated the account.