In answer to your question, I was working on the file I had created earlier. It was the most recent version of the document I had. In case you are wondering, I did not take the file from my laptop back to my XP machine. I only went from my XP machine to my laptop.
What I should mention is that my XP machine had since become unusable and recently died. According to the tech, in addition to my memory cards not working properly, the CPU and motherboard were gone. Could these failing hardware issues have had an impact on what was happening with my inability to SAVE in Office 2002, in 2007?
Also, while the inability to SAVE consistently happened for the file in question in Office 2002, it only happened randomly with other files I created as testers after that.
Any additional thoughts would be appreciated. Thanks in advance.