I don't know what Cat's Claw is, but if you're running XP have you tried the restore points by going back when the program was installed and see if the error disappears and how are you uninstalling it?
Fujitsu Lifebook P727 laptop review
Microsoft Paint set to die after 32 years
Mac power user tips and hidden tricks
Comment désactiver la saisie intuitive et paramétrer votre clavier ?