f4780y said:That's just because the CSS style sheet has failed to load from the Cydia web page. Nothing to worry about. Just try again in a short while. This can happen from time to time if Saurik has a problem with his web server infrastructure.
If it is still not clearing it could be your local cache, so reboot your iPad and maybe even your router, and try again.
f4780y said:If you press the reload button on the top right of the home page in Cydia, does it not reload?