Apple has some advice for PC-based iTunes customers that are considering upgrading to Windows Vista: Wait!

In a support document updated Thursday, the company warned such customers that its digital music software has some compatibility issues with Vista, the latest version of Microsoft’s flagship operating system. Among the known issues: Songs purchased from the iTunes music store may not play; contacts and calendar entries won’t sync to customers’ iPods; and customers could corrupt their iPod unless they eject it from Windows using iTunes.

San Jose Mercury News