Ahoyhoy.
I have an imac and an ibook at home. The imac is shares dial up internet (shh

) access with the ibook via the magic of Airport Extreme. I never bought a router because the airport cards were sufficient.
However, after updating my ibook with whatever Apple prompted me to download (crap like updating airport, itunes etc) my ibook can no longer load anything from the internet despite both computers still recognising each other on the network and despite connection being 100%. The imac hasn't been updated 100% yet and is thus - still fine. I'm holding off updating it as I don't know whether or not it will screw up the net.
Anyway both computers run mac osx 10.3.9 and obviously there are no error messages because my ibook thinks it's in tip top shape *kicks ibook*.
I saw a similar thread on the mac support forums but I don't have a log in and the thread had no useful solutions posted in it anyway.
Help? - I've repaired all disc permissions to no avail.