Lately whenever I use Excel 2003 to try to open an old worksheet I
created with Excel 97 I get a message saying the macros have been
disabled because I don't have a "digital certificate."

I've tried following the instructions in the Excel help files and on
the web to create a digital certificate which I've named "My Digital
Certificate." I think I was able to successfully create the
certificate.

But I can't figure out how to "sign" my macros with it. So my
worksheet has been rendered useless to me until I can sign those
blasted macros.

I'd be grateful to anyone who could explain to me how to get my
worksheet working again.

Will in Seattle
a.k.a. "Clueless"