I have installed Ubuntu 13.04 on my laptop. Now I want to install some software. I added repository for the software but now, when I run:
sudo apt-get update
it updates everything except the repository I have added.
In Software & Updates, have chosen to download from Main Server. I have switched to Ubuntu 3 months ago and it has, up until recently, been working properly, but now I am stuck with this problem.
Is there anything I can do to solve it?