Microsoft has addressed a problem that saw some Mac users excluded from its instant messaging network, MSN.

As reported last week, users of MSN (now Windows Live) who had originally used a .Mac address to sign up for the service were kicked off the network when trying to log into. Customers were asked to start a new account using a Hotmail address.

Categorising this as an "internal error", Microsoft says the problem has now been corrected, and that users should no longer experience the problem.

"Access to Live IDs has been restored to our customers who use .Mac domains. We regret any inconvenience this caused for our customers," the company told MacNN.

The internal error seemingly affected only users who employed .Mac addresses when they signed-up for Microsoft's service. Gmail users and those using their own domain names were unaffected.