So, it looks like the team in Texas has discovered a minor glitch in the 2003 Configure Email and Internet Connection wizard. It looks like it won't install re-new certificates on a leap year.
The Official SBS blog has details here.
So, lay off renewing your cert tomorrow...
Text of error
An error occurred while configuring a component.
To continue with the wizard and configure remaining components, click OK.
To end the wizard without configuring the remaining components, click Cancel.