One product I used in the past was Memo Plus. The following is from the info file:

Rory Data International (formerly Platinum Software Int'l)
17 Thorburn Rd
North Potomac, MD 20878
301-251-0497, Fax: 301-340-9205


What had happened in my case was the data shifted on about 50% of the record in about the middle of the table. I don't know if they are still around, but it might be worth a shot.