I posted this in the MacBook Air forum a couple days ago. Got 150+ views, but no replies. Can anyone help? CoolBook's support has not replied to my email... Original post: I just installed Coolbook (version 2.14, the latest download available from www.coolbook.se) on my Rev. B Air (1.6GHz/120GB) and activated my license. When I open Coolbook, the only frequency option in the drop-down menu is 1596 MHz. I have read the Coolbook manual. I tried restarting my Air. I tried uninstalling and reinstalling and reactivating Coolbook. I cannot determine the problem. Any ideas? I cannot figure out how to get Coolbook to allow me to set frequencies other than 1596 MHz. The default Coolbook settings are 798 MHz @ .925V and 1596 MHZ @ 1.0V. I can change the voltage of the 1596 MHz setting, but I can't even modify the 798 MHz setting that the program preconfigured. Thanks in advance!