Sorry for my English
MyliveUSB with pclinuxos-phoenix-xfce-2010.10.iso in 4 GB usbkey and ext3 fault for the Xorg with black screen and says: "restart the X server".
I was not doing anything special, 3D hardware acceleration enabled in Xorg, Compiz and persistence enabled.
Iso will not start, black screen.

Pentium M centrino 1,6 Ghz, 1 GB RAM and 128 MB videocard Intel Extreme Graphics.