Has anyone experienced any problems with their wireless connectivity after moving to Snow Leopard? Prior to 10.6, I never lost my connection after my MacBook is sleeping for an hour or so. Now I have to either restart or at the very least turn AirPort off and on to regain a connection. The menu bar shows a connection but it doesn't work. I've been working with Apple and they walked me through all the paces but it's still happening. Their stance is that WiFi is tricky at best and they do not see it as a Snow Leopard issue (big surprise) but nothing has changed other than 10.6. Anyone?