Hi to all

I have downloaded and made usb bootable flash of knoppix 5.1 from instruction on http://www.pendrivelinux.com/2007/01...b-knoppix-510/

The problem which I am facing is that the desktop gets black. Some times programs like browser or openoffice closes automatically in the mid of my work. Is my installation file on flash corrupted or this problem is usual in knoppix?
Should I make a fresh download? If yes then help me out in finding the link to download the USB bootable knoppix.


Thanks in advance.

Faisal