problem with installing ubuntu

please some one i need help i've tried to install Ubuntu  several times and i  keep getting the same  error message "failed to start x server ( your graphical interface) it is likly that it is not set up correctly." i've tried this boot disc on  another computer and it  installed beauitfully  not problems... can some one help?

Can you please give details

Can you please give details of the computer you are trying to install to?

Try downloading the

Try downloading the alternate cd, and see what you can configure on the video issue

After Feisty install network is not available

Sorry, I should have started a new thread!! I've re-posted elsewhare. I don't see any way to delete this post.