i'm trying to program our symbol scanners LS2208, to drop the prefix in the barcode. We have a new customer that has their barcodes starting with a letter. The way we have our scanners set up now is it doesn't read the letters, only numbers. Most of our barcodes are 8 digits long, this customer we are having issues with only has a total of 7 digits counting the first letter, if that matters any??