Righto. Be gentle as i've only been playing with my Dad's install of Ubuntu for what, like 10 minutes! I'm trying to set it up so i can watch some tutorial/training videos i have on a portable hard drive. I've got as far as installing VLC and w32codecs, but although the files play with sound, there is no picture. Just black 
Can anyone, in complete simpleton terms, help me out? Thanks!

Can anyone, in complete simpleton terms, help me out? Thanks!