Nicole,
Update the software by selecting Help/ Check for Updates. If you receive a proxy error it means that you do not have the administrative rights to update the software and you will need your system administrator to update it for you. You also want to ensure that you have the latest version of Java 6 and Adobe Flash 11. You can also reset your profiles by selecting Edit/ Profiles and select the icon that looks like 2 red arrows in a circle.
Thanks!