Go to your internet options and change how long you keep web pages on file (mine is set up to keep web pages for 20 days). Also note, that if you don't come to VMF web site for a few days, it will reset causing you to go through the whole ordeal time and time again.
its your cookie setting on your internet options. you have to allow your computer to store the information. check to see how high or low your cookie setting is. If its too high you won't be able to use that option.