[Help] 100% CPU Usage after Tiger Install

After I installed Tiger on my iBook G4, I've been experiencing 100% CPU Usage all the time even when I'm not running a lot of applications at one time. When I only have Finder and the Activity Monitor open, Activity Monitor reports that most of it is system usage. Does anyone know what the problem may be and/or how to fix it? Help would be much appreciated, because when I'm not not plugged in, my time on battery is significantly decreased.

Thanks in advance.

#280528

I experienced a similar issue, at least with the same symptom. For me it was Virex (Vshield) eating the CPU, as 7.5 is not compatible with Tiger as yet. I uninstalled Virex (totally) and everything is now ok. Not sure you have the same issue, but worth checking.

#281234

Thank you VERY much!

Problem solved!

#281351