I have seen several complaints that RC1 did not suggest to test X
configuration and then selected configuration was unusable. I partially
agree that silently skipping test without informing user is bad.
Moreover, in this case we probably should not configure system to
automatically start X at all.
I suggest, that if X is skipped in installer does not suggest
automatically starting X and instead displays approximate text:
"Testing your graphic card was skipped due to known problem that may
hang your system. Because we could not test your X configuration, system
will come up in text mode. Please, login and test your X configuration
by typing `startx'; you can then configure your system to start X11
automatically by using MCC".
-andrej