I have installed knoppmyth as the installation descriptions provided. I have upgraded the xmltv as decribed. After I tried to run mythfilldatabase I got this:

root@mythtv:~ # mythfilldatabase
----------------- Start of XMLTV output -----------------
nice: tv_grab_sn: No such file or directory
------------------ End of XMLTV output ------------------
Error in 1:1: unexpected end of file
Failed to fetch some program info
root@mythtv:~ #

my settings under the first section under mythtv-setup are
Vbi=Pal Teletext
Channel freq= Europe west
Time offset= None

Capture settings is
Swedish/norway
I´m using a hauppauge bt878 tv tuner card

I'd appreciate some help, thanx