Good Day. I created a bootable USB stick on an Ubuntu system as instructed, using Startup Disk Creator from the downloaded ISO file "ubuntu-12.10-desktop-i386.iso".
I made sure that the target laptop has USB as one of first boot devices. When I boot from this USB stick, the light on the USB stick starts flashing, the Ubuntu purple screen with "ubuntu" and the five dots is shown and the dots start to turn from white to red and back to white. All this time the USB drive led flashes. So far, so good, the laptop is booting Ubuntu from the USB stick. Then, after 20 seconds or so, the five dots below "ubuntu" stop changing colors and the led on the USB stick stops to flash. The laptop seems frozen. Nothing works any more (e.g. pressing caps lock does not turn on the caps lock led on the laptop).
I created another USB stick to ensure that it was not a faulty USB stick, but that did not change anything. Still a hung laptop somewhere half way the Ubuntu boot process.
Any ideas what to try next?
Specs of laptop: Dell Latitude E6510 with Intel Core i5 processor, 4 Gbyte memory, 500 Gbyte hard disk, Intel GMA HD video controller, IDT 92HD81 audio controller, Broadcom wireless WiFi device and an on-board GE LAN controller.