[newbie] X configuration

[kdm]

I am helping a friend install Mandrake 7.0, everything goes fine until he gets
to X configuration, he inputs all his video info, but when the install
tests the configuration, instead of the screen asking "Can you read this" he
gets a screen with a background and an X curser that he cannot control???
The screen goes blank and no more installation...

Any suggestions would be appreciated.

Thanks
    -KDM