Fifteen million people are estimated to be eligible for a class-action lawsuit filed against Microsoft, because they bought "Vista Capable" PCs that can only be upgraded to the most Basic version of the new operating system. I have one — it lacks a graphics card powerful enough to run Vista's slick Aero interface. I'd have to install a bigger power supply before I could add the necessary graphics card. The lawsuit's backers have a clever idea: In addition to ads in USA Today , they want to send out a high-priority Windows Update that notifies PC owners about the lawsuit, and requires them to click the notice. Microsoft says they can't identify individual purchasers well enough to contact each one directly. Too bad — they could've sent us all junk mail about the lawsuit, and we'd have thrown it away.