Ya, if you actually read his post, then you would have noticed that this machine is not a gaming machine. It's for his DAD, duh.
Assume. Make and ass of U and me.
How do you know his father does not play any games... let alone want a decent screen saver?
And the word "duh" is not only innapropriate, its rude.
Wise up asshole, people are only asking advice here.