I can now only access the internet via Firefox and Entourage. For the last two days, Safari, itunes and Google Earth say they cant open the page http://...../ because it could not connect to the server ....... I have run the disk utility and ONYX and have not been able to restore the internet access to these apps. The problem appeared after starting up the computer the next day after successfully using Safari and itunes the previous day. Thanks in advance.