Also make sure internet explorer is the default browser.
Set Internet Explorer As the Default Browser
To resolve the first cause, and to set Internet Explorer to be the default Internet Browser, follow these steps:
On the Start menu, point to Settings, and click Control Panel.
Double click the Internet or Internet Options icon, and click Programs.
Ensure that Internet Explorer should check to see if it is the default is selected, click Apply, and then click OK.
Open internet Explorer, and then click Yes when you receive the following prompt.
Internet Explorer is not currently your default browser. Do you wish to make it the default?
Links in e-mail messages should then open Internet Explorer.
Windows XP only
Open Internet Explorer.
Click on the Tools menu, click Internet Options, and then click the Programs tab.
Ensure that the Internet Explorer should check to see if it is the default check box is checked, click Apply, and then click OK.
Close Internet Explorer, re-open Internet Explorer, and then click Yes when you receive the following prompt.