Sony customers who've splashed out nearly $2,000 on a new Vaio laptop should give up hopes of running Microsoft's XP virtualization technology in Windows 7. Sony said it’ll enable Intel's Virtual Technology (VT), which supports Windows XP Mode in the forthcoming Windows 7, only on selected Sony Vaio models in the future. The Z series Vaio - priced $1,719 - won't be one of the machines selected. That means customers whose old Windows XP applications don't work with Windows 7 will find their software unlikely to run on Windows 7. The news comes as Sony gears up for the Windows 7's October launch by pushing the combination of its PCs and Windows 7 on its site here. As an added incentive to buy a new Sony PC, new Vaios are eligible for a free upgrade to Microsoft's new operating system.