We've got SBS2003 and I've enabled OWA, but whenI go to use OWA, I get the following message page... There is a problem with this website's security certificate. The security certificate presented by this website was issued for a different website's address. Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server. I can choose to continue, and all works OK. If I click on the Certificate error button next to the address bar, I've found out what the problem is, when I installed SBS, I mistyped the web site as ww.wibble.co.uk, NOT www.wibble.co.uk (no, it's not our website address!) I've used regedit to find all occurances of ww. and changed them to www., then restarted the server, but this hasn't helped. How do I change the certificate?

you will have to create a new certificate, or you can manually add the existing certifciate or use GP to install the certificate in the "trusted root certificate authorities".

Good answer - the query is - how do I do any of these?