modprobe.conf

Hi, i had to put some modules to load in the modprobe.conf.local file, I have two computer with suse9.1. The first one worked all right but the second one seems like is not recognizing the lines I put in the modprobe.conf.local file, the computers are identical and the module loads when I run the modprobe command, my big suspect is that the computer is not calling the modprobe.conf.local file at the initialization. I tried to put in the modprobe.conf flie, but didn't work too. Is there anyone that could help me?? thanks, Diego