[PROBLEM] XBian installation freezes on "FS RESIZE"

[javirs]

Code:
Software
XBian version: the only one offered by the windows instaler, XBian 1.0 Beta 2
XBMC version: unknown
Overclock settings: default ones

Hardware
Power supply rating: 4.8V 1A
RPi model : B 512mb, 1 week old
SD card size and make/type: 8Gb Class 4
Network : LAN
Connected devices: 8Gb Kingston memory stick, HDMI to tv (non CEC compatible)

Problem description:
The instalation procedure freezes around the 90% at the "FS RESIZE" step.
How to reproduce:
It happens every time I reboot (reflash). I let it there overnight and nothing happens, so it is not just that the thing is slow.

Explanation:
I had openELEC running in the pi for a while (so Pi is Ok and SD card is Ok). Then I decided I wanted some other application running in the background of my XBMC and I tried XBian.
I downloaded the Windows installer, used it to download, format and install my SD card.
Plugged the SD on the raspi.
The installation procedure works nice until the FS RESIZE step, where it freezes forever. All LEDs are lit.

I cannot provide more info since I cannot SSH the raspi (is not connected) and it is not responsive.

Any clue??

PS: I goggled and I've seen other people with similar problems but no one provided a solution / fix
this (extremelly chaotic) post seams to be relevant: http://forum.xbian.org/thread-1770-page-3.html