Today, Microsoft confirmed that it has been investigating a problem deemed the "black screen of death" by users, which affects its latest operating system, Windows 7. The error causes users of Windows 7 to see a completely black screen right after logging on to the system.

The firm said that it was looking into reports that suggest its latest security update, issued on November 10, somehow caused the problem. These reports also show the flaw affecting Vista, XP and other systems. Software firm Prevx, which recently issued a fix for the problem, claims "millions" of people may be affected. David Kennerley of Prevx wrote in a blog post that "users have resorted to reloading Windows as a last ditch effort to fix the problem." Mr Kennerly also shared that the firm had identified "at least 10 different scenarios which will trigger... --