An error 3 is an illegal instruction. Try quitting all apps and then open them. If that doesn't help, trash the Finder prefs and maybe replace the Finder itself. Then try trashing the apps preferences. If none of that works, do the standard zap PRAM and rebuild desktop, and if none of that helps, re-install system. I also had that problem on a PM 8600 w/9.0.4, and in the end I had to reinstall the system, which fixed the problem.
Hope that helps.