This seems to be a compatability issue. Upgrading your browser and clearing your cache and cookies can resolve this.

I. Upgrading your Browser
To optimize your web-experience, please download the most up-to-date version of your Internet browser. Just follow the links below.

Windows:
Internet Explorer 7.0
Firefox 3.0

Mac OS:
Safari 3.0
Firefox 3.0

Clearing your cache and cookies
Sometimes your Internet browser may be the cause of the problems you experience. To fix your problem, you may need to clear your browser’s cache and cookies. Please follow the instructions below.

Internet Explorer 6.0
1. Click "Tools," then "Internet Options."
2. On the "General" tab, in the "Temporary Internet Files" section, click the "Delete Files" button.
3. Select "Delete Cookies."
4. Click "Close."
5. "Quit" the browser.

Internet Explorer 7.0
1. Click "Tools," then "Delete Browsing History."
2. In the "Temporary Internet Files" section, click on "Delete Files" and select "Yes."
3. In the "Cookies" section, click on "Delete Cookies" and select "Yes."
4. Click "Close."
5. "Quit" the browser.

Safari 3.0
1. Open Safari.
2. Select "Empty Cache."
3. Click "Empty" on the "Are you sure?" message.
4. Select "Preferences," then the "Security" tab, "Show Cookies," "Remove All."

Firefox 2.0 for PCs
1. Click "Tools" and select "Options."
2. Click the privacy icon.
3. In the cookies section, click "Show Cookies" and then "Remove All Cookies."
4. In the "Private Data" section, click on "Settings" and make sure the box next to "Cache" is checked before selecting "OK."
5. Click on the "Clear Now" link.
6. "Quit" the browser.

Firefox 2.0 for Macs
1. Click "Tools" and select "Clear Private Data"
2. Make sure that "Cache" and "Cookies" are selected.
3. Click on "Clear Private Data Now."
4. Exit and relaunch browser.

Firefox 3.0 for PCs
1. Click "Tools" and select "Clear Private Data."
2. Make sure that "Cache" and "Cookies" are selected.
3. Click on "Clear Private Data Now."
4. Exit and relaunch browser.

Firefox 3.0 for Macs
1. Click "Tools" and select "Clear Private Data."
2. Make sure that "Cache" and "Cookies" are selected.
3. Click on "Clear Private Data Now."
4. Exit and relaunch browser.

If these instructions do not resolve your issue, we recommend upgrading to the most recent version of your browser. You can find these instructions at the top of this page.