hallo Acader,
        
        
          das erste was ich im normalfall mache ist, das ich apt-get update und apt-get upgrade mache nach einer installation.
        
        
          das passiert wenn ich gnome-control-center eingebe:
        
        
          root@debian-pc:/home/lehrling# gnome-control-center
          No protocol specified
          
          (gnome-control-center:6559): Gtk-WARNING **: cannot open display: :1.0
        
        
          danach habe ich es gnome-control-center deinstalliert und es wieder neu installiert, und folgendes kam dabei heraus:
        
        
          (gnome-control-center:7312): Gdk-WARNING **: The program 'gnome-control-center' received an X Window System error.
          This probably reflects a bug in the program.
          The error was 'BadRequest (invalid request code or no such operation)'.
            (Details: serial 145 error_code 1 request_code 135 minor_code 19)
            (Note to programmers: normally, X errors are reported asynchronously;
             that is, you will receive the error a while after causing it.
             To debug your program, run it with the GDK_SYNCHRONIZE environment
             variable to change this behavior. You can then get a meaningful
             backtrace from your debugger if you break on the gdk_x_error() function.)