Hi Kristian2,
I think you have made a wrong choise.
To use the "install from pre mounted directory" option
mount the medium manually.
I do this
Code:
cd /
mkdir install
mount -t iso9660 /dev/hdc /install
When asked where the installation files are choose
Do not try a keyboard selection.
Leave that until your finished installation.
There is a problem in Slackware 12.
Well reported in this forum and I have had it myself.
And good luck.
John