Kernel_task problem returned

In two previous posts I've described the problem that my MacBook Air has had with the kernel_task process. Apple solved the problem by replacing the computer's logic board.

A few days ago I updated OS X Leopard to the latest version (10.5.8) while waiting for the arrival of some Snow Leopards at my local pet shop.

Tada! The kernel_task problem is back!

I really should contact the Apple Support to find a solution. Maybe I will, and I'll post the results here. But I'll probably wait for my copy of Snow Leopard and see if it solves the issue. Since the new version has been rewritten extensively I will keep my fingers crossed.