This page explains how to clear your Internet browser cache in different browsers.
While in Firefox, hit Ctrl-Shift-Del.
For the time range, select “Everything”.
Click on “Details” to see what will be cleared. Check “Cache”, and uncheck everything else.
Click “Clear Now”.
While in Chrome, make sure the location bar is not selected; then hit Ctrl-Shift-Del.
Obliterate the following items from the beginning of time.
Check “Cached Images and files”, and uncheck everything else.
Click “Clear browsing data”.
While in Internet Explorer, hit Ctrl-Shift-Del.
Check “Temprorary Internet files and website files”, and uncheck everything else.
Is the above not working for you?
Maybe http://www.clearyourcache.com/ can help.