Internet Connection Problem

Hello There,

My laptop is the only computer in the house that is not connecting to the internet. There is the yellow exclamation point over the connection bars in the bottom right hand corner of the screen. When I run my cursor over the bars it says "unidentified network no internet access" , but then when I click on it, it shows that I'm connected to my home wireless network. Help! Any suggestions would be helpful. I've tried rebooting my network adapter and such and nothing seems to be working. :(