I'm using a new laptop with Windows XP Pro. I have a few VBA macros that I digitally signed using a certificate from selfcert.exe. When I made a change to the VBA code, I got an error dialog "There was a problem with the digital certificate. The VBA project could not be signed. The signature will be discarded."

I tried using selfcert again to create another certificate. I get an error dialog "Selfcert Error Could not create a certificate".

I've found that other people have had what seems to be the same problem. The only one who resolved the problem did so by reinstalling IE 5.5. I can't do that as I'm using Windows XP.

Any other ideas?