In PC Magazine's 20th annual "Reader Satisfaction Survey," over 16,000 readers told them who's tops in tech support: Apple. Again. "For almost 20 years PC Magazine has asked our readers to rank the vendors they use, and this year is no exception," Eric Griffith reports for PC Magazine. "We received detailed information from users of 20,690 PCs, both desktop and notebook," Griffith reports. "The average overall score for Windows-based desktop PC makers is 7.8 out of 10, the same as last year's. That's down from 7.9 in 2005," Griffith reports. "Of course, no Windows machine comes close to Apple's 9.1...