Once you have determined that you are using the preferred operating system (Windows XP) and browser (Explorer 6.0 or later), you may need to clear your "cache" or "temporary internet files" in order to successfully complete your application. These files "remember" the error and won't let you progress unless you clear it out of your cache first.
To clear your cache in Internet Explorer:
1. Click the "Tools" menu at the top of your browser, and select 'Internet Options.'
2. Click the "General" tab at the top of the dialogue box.
3. Click "Delete Files" under "Temporary Internet files."
4. Select "Delete all offline content" by checking the box.
5. Click "OK."
To clear your cache in Mozilla Firefox:
1. Click the "Tools" menu at the top of your browser, and select "Options."
2. Click "Privacy."
3. Click "Clear" next to "Cache."
4. Click "OK."
To clear your cache in Mozilla and Netscape:
1. Click the "Edit" menu at the top of your browser, and select "Preferences."
2. Click the "+" next to "Advanced."
3. Select "Cache" under "Advanced."
4. Click "Clear Cache."
5. Click "OK."
To clear your cache in Safari:
1. Open the "Safari" menu on your browser's toolbar.
2. Select "Empty Cache."
3. Click "Empty" in the dialogue box.