Unable to get online with a Mac Pro running OS-X 10.6.8 Other devices can go online via the same modem. Also, other User IDs on the same Mac Pro can get online, just not the Main, Home User. Firewall is off. Same with Wired or Wireless. Same problem with all Browsers, (and in Safe Mode). Sample Message: "The host does not exist". Have tried Permissions Repair, regular Restart, Pram reset etc. But so far, nothing works... Probably some basic error! Any ideas? Thanks.