View this article at: http://www.macnn.com/articles/06/08/22/macbook.update.fans/ Tuesday, Aug 22, 2006 10:10am MacBook update constantly r... Apple's recent update to its MacBook line of Intel-based laptops, which the company said was to adjust "fan behavior," has resulted in fans that run endlessly to cool the device. Apple's own discussion forums reveal that the MacBook fans run continuously at a low speed, ramping up when necessary to move more air through the enclosure, according to InformationWeek. Apple in early June admitted that an oversight during its laptop production may have caused some of its new MacBooks to overheat, saying that some users experiencing warmer-than-usual running temperatures should check for the presence of a clear plastic covering which was inadvertently left in place over the rear vent.