Hm. I'm assuming that everything worked under your previous system... have you checked to see if your kernel supports these devices? Actually, I usually recommend that newbies become familiar with recompiling the kernel, just for its own sake. Also, poke about in the /proc filesystem and see if you can't tell how much your system is recognizing these files. Finally, post one boot's worth of /var/log/messages up here so we can see what is going on.