Sony Vaio Wi-Fi Problem

Hey guys i was wondering if you can help me.

i own a Sony VGN-C1S laptop and it has built-in wireless internet. i have had my laptop for a few months now and am just discovering all of its features.

the problem i have is the wireless internet. for some bizarre reason, it won't let me connect to the internet wirelessly. But when i use a wired connection it works perfectly without any problems.

i found this software on the laptop called "Wireless LAN Starter" and still it doesnt connect properly on the internet stating that "A Static Address is Not Set"

Anyone hadsame problem or knows how to deal with this problem please contact me on the thread.

thank you