If you are seeing the logo with a gray background then you are surfing the internet with an older browser. In order to solve this issue you must update your browser. Here are some links to update your browser.

Safari:http://www.apple.com/support/downloads/safariupdate201.html
Firefox:http://www.mozilla.com/en-US/firefox/
Explorer:http://www.microsoft.com/windows/products/winfamily/ie/default.mspx