Survey: 40percent of respondents in U.S., U.K. and Germany admitted they don’t upgrade software when they should. Security experts said vendors should be more responsive to customers who want security updates. One in five respondents worried that the update would slow down their computer, and 18percent feared new versions of their software might have bugs. A quarter of survey respondents saw no benefit in an upgrade and about the same percentage don’t even understand what some upgrades will do. Security expert said it’s important to stay current with security patches, even if they include features users don’t like.”]