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According to Sony, in rare instances the Vaio VPCF11 and VPCCW2 series of notebooks may overheat, resulting in deformation of the keyboard or external casing and a potential burn hazard to users. If you own one of these series models, Sony recommends that you download and install a firmware update specifically designed to prevent the potential overheating problem. Sony advises customers not to return affected computers to their retailer, but to download the firmware update.
A list of specific models and a link to download the update is available at Sony's support site. You can also call Sony technical support at (866) 496-7669 for assistance. Sony says that other Vaio models are not at risk and don't require the update. B&H has discontinued sales of affected models it had previously stocked.