Hi - just now I came to Creative Cow's site and Firefox loaded a warning page that the site was unsecured, something was done improperly and didn't want to let me in - I allowed for an exception to get here but am posting this so someone can take care of it.
Are you behind a company firewall or proxy? Our certificate recently changed, and are now using an Amazon certificate, but your system should allow the certificate.
Are you sure your computer has the right date / time settings?
Are you still experiencing this issue?