The most common problem is that some web elements are not being displayed properly on your computer. Most of these problems can be solved by enabling Java in your browser. Enabling Java is usually very simple but varies from browser to browser, so please consult your browser's help file for more information.
You can also run a quick test to see if your browser supports Java by clicking this link:
http://www.java.com/en/download/installed.jsp
If you don't have Java installed, this link will install it automatically (it's free):
http://www.java.com/en/download/help/5000010100.xml
We'll be adding more information as site development continues. Thank you!