If you haven't cleared your cache and a new version of the trading application is released, the system will not let you login.
But we'll let you know when a new version is released, and when you need to clear your cache.
On your desktop, click on “Start”
Navigate to the Control Panel
Click on the Java icon.
The Java Control Panel will appear.
Click “Settings” under Temporary Internet files.
Wait for the Delete Temporary Files dialog box to appear
Check all boxes.
Click on “OK”.
Your Java Cache will now be cleared.