i've just downloaded the sandisk secureaccess 2.0 software onto my usb flashdrive. once i've downloaded it, the main page opens where i can add fiels to be encrypted. I then encrypted one test file. i have two issues: 1) i go into my usb and try to open the apparently encrypted test file and it opens like normal (no password required, even when i've closed the main page), and 2) when i close the main page, i cannot figure out how i re-open it ???