when I try to open a link in an e-mail I get the following message:

'This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, an association in the Default Programs control panel.'

This is a recent problem and hasn't been cured by repairing Windows Live Essentials.

Oh, and I get the same message when I click on the Help button in Live Mail!

Can anyone help, please?