PowerBook G4 (No Intel) running OS X 10.4.11 (Tiger) doesn't react to clicks from the touchpad or mouse ... My PowerBook G4 (without Intel) running OS X 10.4.11 (Tiger) doesn't react to clicks from the touchpad or mouse ... any ideas why? and what to do? Is it a Software or Hardware issue? Don't have a OS X Tiger CD to reinstall. Did check what I could on SafeBoot, at some point it said that the HD seems functioning correctly. 

Any solution for this? Any informed ideas would be greatly appreciate it.
Thank you!
If you are using a USB mouse and the mac is still not responding to you, then its clearly a software issue. I would recommend you to using your installer disk and clean install the OS, this will surely fix the issue.