Did you exit to the prompt and "startx"
Shame on me, my only excusion is, i'm so new to tcl: i forgot to include /usr/local/share/ to the backup. Now it works!

BUT: I still have some questions re the boot process:
1) When the "showapps" ends, i still see the error:
xset: unable to open display: ""
2) After there is the msg re starting fluxbox i see:
Setting keymap to us. Done
Both seem to be ininfluent for the further functioning: German keyboard is there and screen resolution 1024x576 as well ... (?)