Quanta Computer is suing AMD for breach of contract and loss of prospective revenue, alleging that it was provided with faulty chips. Quanta is a Taiwan-based ODM that produces laptops for HP, Acer, Apple, and many others, though this suit only relates to machines built for NEC. The company claims that one of AMD's chips suffered from heat-related issues, though it didn't mention any specific models of chip or laptop. AMD's now-rebranded ATI graphics unit is mentioned in the filing, which suggests that the issue relates to an older-generation GPU. AMD disputes the claim, saying that Quanta has used the same chip without problem in other computers from NEC, which would imply that the variable is the design of the computer itself. There aren't many details on this case yet, but we'll keep you posted.