after a few tests, it appears that Game Schedule breaks the styling of the standard WP calendar widget when it is inserted in the footer.
I'm using WP 3.8 with Sporty Pro theme (www.templateexpress.com/sporty-pro-theme/) and when I activate Game Schedule the layout is broken.
Screenshot with Game Schedule activated:
The URL (it's a multisite install I use for testing) without Game Schedule now show the correct calendar styling:
Can you please check why this is happening? Thank you.