Ok, this is the 2nd time this has happened to me since I upgraded from 10.2.8 to 10.3.2. My dual 867 lost its network card. When I first saw I lost my connection, I instinctivly restarted my modem and router, only to see that the light for my port doesnt go up. All the other comps (WinXP) show their lights. At that point I knew it happened again. I go into my network prefrences and see that i no longer even have the selection of built-in ethernet. No red, orange, or green orb, no selection. Nada. I open the ethernet prefs through the pulldown menu, and it shows no IP from my router, and no IP that it gives itself when my router goes to hell. It was just blank. Restarting didnt help again, I had to do a Repair Disk from the OS X cds. Its funny, it didnt show any problems, but it fixed it both times. Yea I can fix it obviously, but is this an isolated case? What's causing this nusiance???