My new iMac with OS 10.4 got right on the internet perfectly out of the box. I have a linksys wireless router connected to cable modem and it got right on and I was surfing the web just great. Then I installed Bootcamp and Windows. Now, in OS X, my Mac sees the Linksys router just great (showing strong signal with all bars showing, etc), but when I open a browser it says no internet connectivity. It's possible the problem was caused by an update rather than bootcamp, but the problem developed sometime during a period when I wasn't booted into OS X for a long time bc was having to do all my work in Windows. Why would I have wireless access in OS X, but internet access only in Windows?