Recently I installed Ubuntu 12.04 on my Sandisk cruzer 4gb usb.. So i used it to browse on internet then i tried to play some flash-base games. So i downloaded adobe flash player then play some games then after an hour i turn off my computer. When I get back to it I notice that all the things I did last time didnt save even the wallpapers etc. Is there a way to save on this live usb? Sorry for bad english