Apple posted an update for Airport labeled "2006-002". It is intended to the users of the latest generation of MacBooks and MacBook Pro based on the Core 2 Duo processor, as stated in the description provided by Apple:

AirPort Update 2006-002 improves AirPort compatibility in the following computers:

• MacBook Pro (15-inch Core 2 Duo)
• MacBook Pro (17-inch Core 2 Duo)
• MacBook (13-inch Core 2 Duo)

The update weights 1.3MB and is available either through the SOftware Update utility or through Apple's support web site [1].