If you have installed a Powerlogix upgrade card and subsequently have upgraded your happy purring Mac to 10.4.3 of OS X, you absolutely need to install the new Powerlogix CPU Director as well. I was having really strange crash problems yesterday and today before I figured out that my poor Sawtooth G4 2.0 GHz was overheating and creating weird kernel panics and grey/black screens of death.
To save yourself the same woes, simply:
- Delete the old CPU Director (I had version 2.1)
- Download the newest version (currently 2.3b1)
- Move the entire folder including the support files to your Applications Folder
- Double click on the CPU Director application to launch