Apple Customers Report MacBook Pro Graphics Glitch - InformationWeek

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Apple Customers Report MacBook Pro Graphics Glitch

Users first focused on the Nvidia GeForce 9400M integrated graphics processor, but later said the problem could be with the computer's cooling system.

Apple customers are complaining that the latest 17-inch MacBook Pro intermittently displays color lines that can make the systems temporarily unusable.

The complaints started early this month on Apple's discussion forum. At first, users focused on the Nvidia GeForce 9400M integrated graphics processor as the culprit, but later said it could be related to the computer's cooling system.

Apple did not respond to a request for comment, but Nvidia said Apple was in charge of investigating the problem. "We will certainly support them, if they want our help," an Nvidia spokesman said. There have been no reports of problems with the GeForce 9400M in other systems.

MacBook Pro users said the distorted graphics appeared as the system temperature increases with greater workloads. One user reported that the problem started when the graphics processor reached a temperature of 133 degrees Fahrenheit. As the processor heated up, it appeared the system's fan did not increase at a speed fast enough for proper cooling.

Apple introduced the latest MacBook Pro in January at MacWorld. The 17-inch system, Apple's largest notebook, is built using Apple's unibody manufacturing process that starts with a single piece of aluminum and punches out the areas for the keyboard, trackpad, etc.

The 1-inch-thick notebook weighs 6.6 pounds, offers as much as eight hours of battery life, and comes with a discrete Nvidia 9600M GT processor, along with the 9400M chip that's integrated with the motherboard. Prices start at $2,799.

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