I posted a few days ago in the Mac PC section about issues I had with my computer failing to boot and very strange messages I was getting. I finally got it up and running -- turned out not to be hardware, though it certainly seemed to be, but some weirdness with the OS. I did an archive and install and was back in business.
Somewhere along the way, I checked (via system profiler) the extensions and there were some problems with kext dependency (invalid), etc. It was in the "IOAudiofamily" portion. After I reinstalled the OS, all was listed as fine.
Could the logitech control center software have screwed up my system to that extent? I had some problems with my logitech laser mouse during some of the starting/restarting/troubleshooting and was using my Apple mouse. WHen I returned to my regular mouse, after reinstalling the OS, the programming was gone, and so was the Logitech Control Center software from the preference pane. When I tried to re-install it I got a warning note from the system, essentially telling me that the software image was a bad image and proceeding could damage my system/computer and did I want to continue? Well, of course not. I still had a previous version somewhere on my computer and got the same message when I tried to mount the image. I found a still earlier one (from 2004, I think) and was getting ready to install that, but decided against it, as who knows if that one even works with Tiger?
I just thought that was very intersting, and I wonder if using LCC somehow corrupted the OS.