creating signatures won't work

[Peborgh]

Guys,



Following Outlook 2007 Help, I created a new email, clicked the Signature button, then the Signatures... drop-down that appeared.
Nothing comes up!

Same happens when I go the Tools>Options>Mail format>Signature route: there I get arrow-and-hourglass at intervals but nothing else happens...

I have signatures on my computer already from Outlook Express and ideally, I would like to "adopt" these into Outlook but am willing to type them back in if necessary.

But, as I said, I can't get to the Signatures... dialog box.
Help!

Thanks.