I assume you have a MKIV??? Do you? I would get a good Ver.32 disk and try to reload it. We can get them here through the dealer for about $10. The part number has been posted here before. Do a search. Be careful disconnecting power if you have a MKIII instead of a MKIV. The MKIV says DVD on the front. Disk number in this link.

I don't know but if you think it may be your disk then buy an original