How to resolve "The Page cannot be displayed" error in IE

This problem can come about due to a number of reasons, some of which are addressed in the following steps:

1. Check that you are connected to Tiscali Broadband and test the connection on a few different websites such as http://www.iyogi.co.uk and http://www.bbc.co.uk. If you can access another website address, the problems lie with the page you were trying to visit and you should contact the site owner directly to pursue this matter.

2. Delete your temporary Internet files and cookies. To do this, follow these steps:
- Click Start, point to Settings, and then click Control Panel
- Double-click Internet Options.
- Click the Temporary Internet Files, click the Settings button.
- Then click the Delete Cookies button and confirm this decision by clicking Yes at the next prompt.
- Next click the Delete Files button and confirm this decision by clicking Yes at the next prompt.

Source
http://www.tiscali.co.uk/help/broadband/nowebpage.html