IE won't connect to wireless network.

Hello,

I have a Acer aspire laptop that has windows vista. I recently got wireless internet installed in my house with wifi. I had AOL already on my laptop and used that through dial up, and when I got the wifi, it worked off of that wireless connection as well. However, internet explorer didnt work. I tried deleting AOL from the connections options, and uninstalled it altogether and IE still wont work. I downloaded firefox and that won't work as well. All that comes up on IE is IE cannot display the webpage. I know that my laptop is linked to the internet connection because when I go to start menu, connections, then set up a wireless connection, it says I am already connected to the internet, even though IE won't work. I dont know what else to do to solve this problem. Please help!