On my computer when I try to login to OWA, the page does not load, icons are replaced with blue boxes, and there is a loading message at the top of the Inbox, how can I fix this?

The first thing to check is the Internet Explorer security setting. The loading issue, as it is sometimes referred to, occurs when the Internet Explorer Security setting is configured to "High" or if cookies are disabled. To change the security setting to "Medium-High" or "Medium" and verify that cookies are enabled, In Internet Explorer, select Tools\Internet Options.
  1. In Internet Explorer, select Tools\Internet Options from the browser menu.
  2. Move to the Security tab.
  3. Select the Internet zone and verify that the security level for this zone is set to "Medium-High" or "Medium".
  4. Move to the Privacy tab.
  5. Click the Advanced button.
  6. Ensure that the "Override Automatic cookie handling" checkbox is not checked.
  7. On the General tab, press the Delete button to clear the browsing history.
  8. Press Apply and OK.
  9. Close Internet Explorer.
  10. Open a new Internet Explorer session and try logging in to OWA.
Also, add Outlook Web Access to your trusted sites list. To add the OWA website to the trusted list,
  1. In Internet Explorer, select Tools\Internet Options.
  2. Move to the Security tab.
  3. Click on Trusted Sites and press the Sites button.
  4. Enter the OWA address in the "Add this website to the zone:" field.
  5. Press the Add button.
  6. Press Close.
  7. Press Apply and OK to save the changes.
  8. Open a new Internet Explorer session and try logging in to OWA.
If the issue remains, contact you Help Desk or Exchange Server Administrator as there may be an issue with the order in which hotfixes were applied on the server.