I set up my Dell Inspiron loaded with Ubuntu 3 days ago and had no problems. This morning I got a message to install Hardy Heron. I started the download and all seemed well. Then the installation stalled saying 4 minutes to go.
After about half an hour I tried to use pidgin to get some help on the IRC channel, but I've never used this before and could not get it working.
I turned the computer off at the tower. Turned it on again and I seem to have completely lost everything. The log in came up o.k. but after that I just have a blank brown screen with a large black margin to the left hand side.
What do I do? I have no technical know-how - so simple language please!