Thanks for your help in advance.

I have a workbook created in Excel 2002, Windows XP. I dropped a
couple of checkboxes on "sheet1" and locked it with a password. The
workbook was sent to a client, they clicked on the proper checkboxes
and then sent it back. What baffles me was that in the workbook they
sent back the worksheet was no longer password protected and
checkboxes have been renamed. I had them named "CheckBox1" and now
they are "Check Box 1". Do you know what could have caused all
these?

Thanks,
Jenn