I have a Microsoft Word document produced in Word 2003. This has been added to a great number of times since 2006. I have copies saved in July 2007, October 2008,December 2008 and end January 2009. These are all backups produced at the time. All were fully readable. The latest version, only worked upon last week, shows the first eight pages as normal and then the balance is pure hieroglyphics. On reverting back to each of the earlier backups they all reveal that same rubbish but starting at different pages. Clicking on the text that is gobbledygook shows that it is Times Roman Special G1. Selecting that text and changing it back to its original Times New Roman or any other font style simply shows the text as rectangles/squares.
As a tremendous amount of effort has gone into this document can anyone suggest a solution to this?