Signing a VBA project?

I am having problems getting this to work with Bricscad v8 and v9. I have never signed a project before.I have the Security setting set to High in Bricscad.I created a personal certificate with SELFCERT, exported the personal certificate and imported it into Trusted Root Certificate Store (using Outlook Express).From Tools | Digital Signature I choose the signature to sign the project with and it look Ok.I exit and restart Bricscad, load the project and try to run a macro and am told they are not enabled. Trying again with Security set to medium and I get the prompts and all works.It seems the project is not actually getting signed at all. Is there someone here with experience signing VBA projects willing to lead the blind? :)Greg