Microsoft's MSN Messenger service was down for several hours yesterday because of a 'hardware fault'.
According to Reuters, millions of users were unable to send and receive instant messages on their computers.
Microsoft confirmed that the outage hit more than 75 million users worldwide, and cited an unspecified hardware problem.
It has not been the best of starts to the new year for MSN. Last week .Net Passport, which provides a single identity for users to log on to multiple websites, also suffered a temporary crash.
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