Looks perfect. Thanks. I wasn't aware I wasn't using the default theme.
You're welcome. If you ever want to change themes, even if only temporarily to see what they look like, you can click on the "Welcome back, chuck" link top-left of page, then in the drop-down menu that appears click "Edit Options", and on the page that loads, under "Other Options" bottom-right of the page, select the "Board Style" that you want, and then click "Update Options".