As in such cases, mileage may vary: Tekserve, for example, was upgrading new systems that lacked the digital detritus that accumulates on well-used Macs.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at , on or subscribe to . His email address is .
See .
in Computerworld's Mac OS X Topic Center.