After loading Ubuntu 12.04.3 onto a 8gb memory stick I loaded into my older second PC. I followed the instructions as per site.
After around 40 minutes, it seemed to fully load. I choose reboot, which took a while, then on screen showed Ubuntu preparing to run Ubuntu for the first time.
A screen full of computer jargon came on starting with
72. 771493 ...ck958  card 67 etc.
At this moment in time my PC is black with an occasional dim flicker
Please advise if possible.