[6.2.1] Screen + keyboard issues

[GizmoPlushie]

When you boot the Knoppix CD or DVD, it creates an environment that is completely independent of your normal (disk) OS; the CD test doesn't use the disk at all. You can also make the system work with a copy on the disk, and create a separate file that allows for customized operation, still independent of other valuable files on the disk.

Cheers!
Krishna

So as I understand it correctly, I could reinstall the CD on the HDD without worrying about my data on it (music, movies, pdf's etc.)? Correct me if I'm wrong, cause that would be nice