try clearing your browser cache.
Internet Explorer (Windows)
Open a new browser window and go to the "Tools" menu
Select "Internet Options"
In the "General" tab, and under "Temporary Internet Files," click the "Delete Files" option
Click "OK" to delete the files
Click "OK" to close the Internet Options dialog box
Firefox (Windows & Mac)
Select the 'History' menu, and scroll down to 'Show in Sidebar'
Select Clear recent history/ clear now.