Installing Ubuntu 8.10 hang at 82% scanning mirror

Due to some reasons, I am re-installing Ubuntu 8.10 to dual boot with my Windows XP machine.

I choose to install Ubuntu into a separate partition, the installation progress well, until it reach the 82 % - scanning mirror, it stuck there forever.

So I call one of my friend for help, he advice me to disconnect my network cable temporary, plug it back after my installation is complete.

I do as advised, and it works nicely, I am now with my ubuntu 8.10 running again.