I recently installed Opera browser, then went back to Explorer. Now, when I click on an object with an embedded link in an html email, nothing happens (actually the drive kicks on for a second like something's happening, but the browser doesn't launch). This is not true for clicking on typed out URLs ie "http://www.microsoft.com" in either html mail or plain text mail.

Can you please help me solve this problem?

Many thanks,
drewp2