In Internet Explorer:
1. Tools menu > Delete browsing history... (if you don't see the menu bar, press Alt to have it show up). OR Press Ctrl+Shift+Del
2. Ensure "Temporary Internet files" and "Cookies" are checked, and Uncheck "Preserve Favorites website data" if GIFTS Online is a favorite/bookmark
3. Delete > Yes
4. Restart Internet Explorer and try again
 
In Firefox:
1. Firefox Menu > History > Clear Recent History... OR Ctrl+Shift+Del
2. "Time range to clear:" = Everything
3. Ensure "Cookies," "Cache," and "Active Logins" are checked
4. Click "Clear Now" button
5. Restart Firefox and try again