> Summary : use 'vim' (or other editor) to setup the > /etc/X11/XF86Config file properly and use Alt-Ctrl-Del > to reboot, not the power button.
Before resorting to rebooting, try Ctl-Alt-Backspace in the graphics (black) window. The X-server responds to this by shutting itself down, restoring you to the virtual console where you entered startx. It is best not to use xdm to bypass command line screens until you have X reliably configured, BTW.
