I just added an Ethernet card to my Performa/LC 475 running MacOS 8.1. Now, when I boot, it tells me that the file sharing extension cannot start. No information about what is bothering it, of course...
I reloaded the OS and there is no change.
This is probably an FAQ or a simple question, but it's worth 100 points to "cut to the chase". What do I do to fix this?