I always set the "safe=yes" option in /etc/sysconfig/kudzu, because it takes several seconds during boot otherwise. In redhat linux 7.2 it is even longer, about 10 seconds ! The file comments in /etc/sysconfig/kudzu say that the "safe=yes" setting will disable scanning the serial ports and the DDC monitors. But it also fails to detect my PS/2 mouse, so on boot it claims that the PS/2 mouse was removed and offers to de-configure it. At least the comment in the /etc/sysconfig/kudzu file should be updated, if nothing else.
Will be fixed in 0.99.24-1 - thanks!