In 2004, software vendor The SCO Group (nasdaq: SCOX - news - people ) sued Linux user AutoZone (nyse: AZO - news - people ) for what it claims are violations of its intellectual property--a case that hasn't yet been resolved.

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Note that I have failed to mention AutoZone (NYSE:AZO), a widely-followed auto parts concern.

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There is some leadership too in some of the defensive groups, the auto replacement-part stocks, AutoZone ( AZO) and Monro Muffler ( MNRO) to name two.

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Then there is Autozone (AZO) , the large chain of auto-parts stores.

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