We successfully use "trusted" (local) digital signatures in our organisation. We recently upgraded both our laptops, and also software to 2013. Since then, one user cannot digitally sign documents that were OK prior to the upgrade. I've just sat down and compared my Word Options to his: they're identical.

The issue occurs when he tries to sign a document. He sees the dialog box asking him if he wants to obtain a digital ID; if he says Yes, he's redirected to the list of third-party providers (which we don't use); if he says No, the dialog box closes with no alternatives, therefore he cannot sign any documents. No other users have reported or seen this issue.

I'm not sure where/what to check next - any advice please?

Amanda

• Edited by Birmangirl 19 hours 13 minutes ago