Description of problem:
After booting from rawhide "boot.iso" as of 2007-07-28 and entering
the requested information for an "http" install, "stage2.img" gets
downloaded successfully. Hereafter, the installer correctly reports
the display type ("LG L1710B" analog) which is connected to the "VGA"
output of an "IBM ThinkPad T23". There is a short flicker on the
screen as if the "X" server was about to start, buth immediately the
screen goes black. The monitor light remains green though which means
that at least there is a signal. It is not possible to switch to a
virtual console to see what's going on but "ctrl-atl-bckspc" is still
able to trigger the reboot of the system.

Version-Release number of selected component (if applicable):
anaconda-11.1.0.72-1

How reproducible:
Always

Steps to Reproduce:
1. Boot from corresponding "boot.iso" (2007-07-28).
2. Enter install details and proceed to downloading "stage2.img".
  
Actual results:
Screen goes black.

Expected results:
Graphical installer is launched successfully.

Additional info:
Adding additional boot parameters such as "noprobe", "skipddc"
combined with various resolutions from "640x480" etc. has
no effect.
Due to an installer regression, current "anaconda-11.1.0.73-1" does
not get to the point where the "X" server is started. Hence, I cannot
make any statement about that version.