Have you got a firewall installed on the PC connected directly to the internet. If you do you will need to configure it to allow access from the second PC. Most well known ones have a wizard to do this.
WPA2 hack: How secure is your Wi-Fi?
HP’s new Surface Pro rival is designed specifically for Adobe-using designers and artists
Best kids apps for iPhone & iPad
Que faire si son iPhone ou iPad est tombé dans de l'eau ?