Just started using ubuntu. I have it set up in Virtual Box . Need to know some interesting software . I already know of open source software such as Mplayer, Avidemux, VLC Player. Also where to download these software ? DO these come in packages ? What does i386 in their file names stand for ? I have Vista 64 bit, Virtual Box 64bit , Intel Q9450 processor which supports 64-bit , can i install AMD64 Ubuntu ? How to clean up the temporary files in ubuntu ? I just installed acfax, aldo software from synaptics manager . Now i cant find them anywhere. How do i run them ? I tried to install some software, but they dont show up in Applications menu. Where do they go ?