[Klug-general] This sudo thingy in Kubuntu

[Mike Rentell]

A cry for help (again!). I'm fiddling with Kubuntu under VBox and it all 
seems to work but I can get no web pages with java bits to work so I 
have downloaded:

jre-6u13-linux-i586.bin

from a website but I can't get it to run and install. I've tried sudo 
jre-6u13-linux-i586.bin but it comes back immediately and says that it 
isn't authorised. It doesn't ask for my password which is what I thought 
was supposed to happen with this sudo thingy.

I do wish Ubuntu would allow root passwords. Can anyone enlighten me? 
I'm obviously doing something stupid.

MikeR