Black screen after initialization

[demo44]

Software
XBian version: Xbian latest rpi (on the installer)
XBMC/Kodi version: same
Overclock settings: no OC

Hardware
Device type and model (e.g. Raspberry Pi Model A/B 256/512 MB, CuBox-i i4Pro, ...): Raspberry Pi model B
Power supply rating: 5V/0.7A
SD card size and make/type: 4Go
Network (Ethernet or wireless): Ethernet
Connected devices (TV, USB, network storage, ...): TV (hdmi)

Log files
Link to logfile(s):

Problem description:
First time, I installed the latest version with the laucher on windows, everythings go well. I pluged my rapsberry with the SD card, and after the stead "Lauching Kodi" the screen goes black and i couldn't do anything. I tried to switch off/switch on my TV, but nothing.

Second time is used Win32DiskImager to install the XBian_2015.09.26_rpi.img and i get exactly the same problem.

How to reproduce:
I don't know.


Can somebody help me to install Xbian ?

Thank for answer