Newbie: using kpackage (?)

[stry_cat]

According to http://www.knoppix.net/wiki/Knoppix_Remastering_Howto, you'll need to outside of the chroot run

Xnest -ac :1

Back in the chroot, you need to

export DISPLAY=localhost:1

This part of the How-To worked fine for me. Hopefully it will work fine for you.