I have an Excel application that I took over writing from another
programmer who left the company. It's a full app -- not just a bunch
of spreadsheets.

Excel will frequently fail on a Save or Save As. So I go back to the
previously-saved version of the file, and now it fails, too.

For example, I start with version "A".

1. Open "A", and immediately Save As "B". That works fine.

2. Close Excel. Open "B", and immediately Save As "C". That works
fine.

3. Close Excel. Open "C", change the code or a form, then Save As
"D". That works fine.

4. Close Excel. Open "D", change the code or a form, then Save As
"E". Fails! So now I can't save the changes I made in "D".

5. Close Excel. Re-open "C", and immediately Save As "F". This
worked before, but now fails! Now I've also lost the changes I made
in "C".

6. Close Excel. Re-open"B", and immediately Save As "G". This worked
before, but now fails!

7. Close Excel. Re-open"A", and immediately Save As "H". This worked
before, but now fails!

Over the past few days, I have written the same code again and again.
I don't find out until after many hours of work, and many saves, that
all of it is lost. I've tried three different machines, and they all
fail one way or another. Rebooting doesn't change anything.

I've seen some posts about converting to HTML and back, but that would
lose all forms, wouldn't it?

Suggestions welcome.

Thanks
Dan