This morning I updated some required packages using Synaptic. Upon completion, the system told me a restart was required. I chose to restart later and finish some work first. Just now I tried to do the required restart, but unfortunately my pc does not want to start anymore.
The startup process is not even getting started. The pc makes some normal noises until it starts beeping a few times, and then, nothing. The screen remains black; there seems to be no input whatsoever.
I had a similar problem the previous time I had to do a required restart. At that time I managed to get my system up and running again by turning off the power completely. This time I tried the same, to no avail. I tried booting from a Live-CD, but that didn't work either. I am running the most recent LTS Ubuntu version (10.04).
Any ideas about what else I can try, or how to determine the possible cause of the problem? To me it seems peculiar that the problem occurs after a software update, while at the same time the failure to boot from a LiveCD suggests a hardware problem, right?!