The most common reason for this is your web browser's cache. Clear it, and try previewing your site again.

How do I clear my web browser's cache?

Each time you access a file through your web browser, the browser caches (stores) it. This way, the files (including any images on the page) do not have to be retrieved from the remote website each time you click the Back or Forward buttons. You should periodically clear the cache to allow your browser to function more efficiently.

Click on your current browser:

Windows

Internet Explorer 8
Internet Explorer 7
Internet Explorer 6.x
Firefox 3.5 or higher
Firefox 3.0
Google Chrome
Netscape 8
Netscape Navigator 7.1

Mac OS and Mac OS X

Safari
Firefox 3.5 or higher
Firefox 3.0
Google Chrome
Netscape 6.x or later and Mozilla

Internet Explorer 8

• From the “Tools” menu select” Internet Options.”
• Choose the “General” tab.
• Under “Browsing history,” click” Delete.”
• Tick the check box next to "Temporary Internet Files"
• Click “Delete.”
• Click “OK” to exit.

Internet Explorer 7

• From the “Tools” menu select “Internet Options.”
• Choose the “General” tab.
• Under “Browsing history,” click “Delete.”
• Next to "Temporary Internet Files," click “Delete files.”
• Click “Close,” and then click “OK” to exit.

Internet Explorer 6.x for Windows

• From the “Tools” menu select “Internet Options.”
• Choose the “General” tab.
• In the "Temporary Internet Files" section, click “Delete Files.”
• To confirm the deletion, click “OK.”
• In the “Internet Options” dialog box, click “OK.”

Firefox 3.5 or higher for Windows

• From the “Tools” menu, select “Clear Recent History.”
• In “Time range to clear” select everything.
• Expand the “Details” section and make sure the check box beside “Cache” is ticked.
• Click “Clear Now.”

Firefox 3.0 for Windows

• From the “Tools” menu, select “Clear Private Data,” and then choose “Cache.”
• Click “Clear Private Data Now.”

Google Chrome

• Click the wrench icon on the browser toolbar.
• Select “Tools.”
• Select “Clear browsing data.”
• In the dialog that appears, select the checkboxes for the types of information that you want to remove.
• Use the "Clear data from this period" menu to select the amount of data that you want to delete.
• Click “Clear browsing data.”

Netscape 8 for Windows

• From the “Tools” menu, select “Options.”
• Click “Privacy.”
• Next to "Cache," click the “Clear” button.
• If you'd like to set the size of the cache and set the browser to clear the cache when you close it, click the + (plus sign) next to "Cache" and change the settings as needed.

• Click “OK.”

Netscape Navigator 7.1 for Windows

• From the “Edit” menu, select “Preferences.”
• In the left panel of the “Preferences” dialog box, click the + (plus sign) in the box to the left of “Advanced.”
• Click “Cache.”
• Click “Clear Cache.”
• In the “Preferences” dialog box, click “OK.”

Safari

• From the Safari menu, select “Empty Cache.”
• When prompted, click “Empty” to confirm that you want to empty the cache.

Firefox 3.5 or higher for Mac OS X

• From the “Tools” menu, select “Clear Recent History...”
• From the “Time range to clear:” drop-down menu, select the desired range; to clear your entire cache, select “Everything.”
• Click the down arrow next to "Details" to choose which elements to clear. Click “Clear Now.”

Firefox 3.0 for Mac OS X

• In Firefox, from the “Tools” menu, select “Clear Private Data.”
• Select the elements you want to clear (e.g., Browsing history, Cache, Cookies), and then click “Clear Private Data Now.”

Google Chrome

• Click the wrench icon on the browser toolbar.  If you don't see the wrench icon, you can go to the menu bar at the top of your screen and select Chrome > Clear Browsing Data to open the “Clear Browsing Data” dialog.
• Select “Tools.”
• Select “Clear browsing data.”

• In the dialog that appears, select the check boxes for the types of information that you want to remove.
• Use the "Clear data from this period" menu to select the amount of data that you want to delete.
• Click “Clear browsing data.”

Netscape 6.x or later and Mozilla for Mac OS and Mac OS X

• In Mac OS X, from the Netscape or Mozilla menu, select “Preferences…” In Mac OS 9.x or earlier, from the “Edit” menu, select “Preferences.”
• In the left panel of the “Preferences” dialog box, click the arrow to the left of “Advanced.”
• Click “Cache.”
• Either click the “Clear Cache” button, or click both the “Clear Memory Cache” and “Clear Disk Cache” buttons.
• In the “Preferences” dialog box, click “OK.”

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