I recently bought 7.2.0 dvd on a usb drive from a retailer listed in the Order Knoppix section of the site. The problem is unlike previous versions I have had, the option to create a persistent image is not displayed during boot. I found that my session was automatically saved on the usb after I shut down, which I do not want. Usually I choose not to have persistence or encryption.

Is this some kind of flaw or has something changed?