Re: Try Kubuntu Without Installing failing
It is hard to say what is causing this. Generally you do get a less stable experience when running directly from the cd in comparison to a hard drive install. I don't think you are doing anything wrong however.
If I'm to speculate, it could be caused by the cd having got a small scratch during the week; it could also be that it is more or less coincidence whether it works or not.
What to do?
1. Sometimes you get a 'verify cd' option when you boot from it, run that and check that the cd is still fine, or
2. Burn a new cd with either exactly the same version, or another version (such as 10.04 if you used 10.10 and vice versa), or
3. Try booting from a usb instead.
4. Try regular Ubuntu instead (in my experience, it is more stable).
Hope you get it working. Otherwise, as I said, it will probably work better if you install the system to hard drive. But then, to do that, you often want to check that it works well from the live cd first: catch 22
Since when is floor not a synonym of horizontal wardrobe?