Some "unknown" event occurred on my PC on or before 5/6/10 which has corrupted files written in both Word 2003 AND Word 2007 which are/were stored on a USB memory stick.
Some of these files represent YEARS of work I've now lost.
First thing that I thought was, good job I backed everything up. Wrong! The backed up files seem to be affected too, which seems VERY strange to me.
Some of these files are encrypted using "Encrypt on Click" software, but I have no reason to suspect that is the cause. I have 3 computers, 2 use Windows XP and one is Vista. Same problem exists on each computer.
Everything is ok with regards to viruses, malware, spyware etc; and all updates are up to date. Disk checks have been run and no errors found.
Could it be something else causing this?