I boot bt3 usb and the boot up screen comes up but then it turns black so i keep pressing ctrl alt numplus then it comes up with the login screen so i login root and password toor then xconf and startx then it says this ( i shortened the output in this bit)

x set: bad font path element (#62), possible causes are:
Directory does not exist or has wrong permissions.
Directory missing fonts.dir
Inconrrect font server address or syntax
Startxkde: Starting up...
kded: ERROR : kunique: Registering failed!
Then it shuts down.

Please help :/