Are any other internet-using programs functioning?
Try running the New Connection Wizard as follows:
1. Click Start, and then click Control Panel.
2. Click Network and Internet Connections.
3. Click Internet Options.
4. In the Internet Properties dialog box, click the Connections tab.
5. Click the Setup button.
The New Connection Wizard starts.
6. On the Welcome to the New Connection Wizard page, click Next.
7. Click Connect to the Internet, and then click Next.
8. Click Set up my connection manually, and then click Next.
9. Click Connect using a broadband connection that is always on, and then click Next.
10. On the Completing the New Connection Wizard page, click Finish.
11. Quit Control Panel.
See if this fixes your problem.
Please update us with your results.
Unsolved 
