Microsoft's Clouds May Break If Vista Boots Up

With "only" 60 million copies of Windows Vista in use, the perception lingers that companies are in no rush to install Microsoft's(MSFT Quote) new operating system.

But Vista's effect on the software giant's stock may be worth the wait.

Vista replaced XP, whose Home and Pro editions had an estimated 538 million legal copies installed by the middle of 2006, according to IDC.

But it took XP four years on the market to account for half of all operating systems installed, according to data from Gartner. ...