Clear cookies/cache/flash cookies.
Use Firefox Private Window or Chrome Incognito.
Install Better Privacy plugin which deletes flash cookies automatically.
nobody had this issue ?
https://addons.mozilla.org/En-us/firefox/addon/clickclean/
http://www.piriform.com/ccleaner
Are you running ccleaner? Make sure to change the setting to clear micro media cookies aka flash cookies, if your using Firefox you should use a plugin called "click & clean" so all you have to do to clear all data is close your browser and it will run ccleaner on exist automatically.
Code:https://addons.mozilla.org/En-us/firefox/addon/clickclean/
Code:http://www.piriform.com/ccleaner