Most browsers save data from recently visited websites into a cache or temporary location on your hard disk. That can speed up operations considerably because the browser doesn't have to download all the information if you return to that site. But it also clogs up your hard disk and can prevent pages from appearing correctly, if pages have been updated or changed since your last visit. Fortunately, there are ways to remove those files.
On Internet Explorer 7.0:
Click Tools, and select ‘Delete Browsing History’.
Click ‘Delete files…’ next to Temporary Internet Files. Select ‘Yes’ when prompted.
Once the files are cleared, reload the page (or press the F5 key).
On Internet Explorer 4.0 and above:
Select Internet Options from the View Menu Find the section called Temporary Internet Files (second from the top).
Click ‘Delete Files’. You will be presented with a check box that lets you decide whether to delete all subscription content. This is the information that may have been downloaded if you subscribe to sites.
If you don't need to see this information, then go ahead and check it.
You may also click Refresh.
Go to the Tools menu and select ‘Clear Private Data’.
Make sure ‘Cache’ is selected, then click ‘Clear Private Data Now’.
Click Reload or press F5.
On Netscape Navigator 4.0 and above:
Select Preferences from the Edit Menu.
Click on the ‘+’ to the left of Advanced (the last listing on your screen).
Click on ‘Cache’.
Click on ‘Clear Disk Cache’.
Click on ‘OK’.
You may also click ‘Reload’.
From the Safari menu, click Empty Cache.
Select ‘Empty’ when prompted.
Refresh the page.