recently updated mac to this version, and since then certain web pages timeout or server not found or they just hang, you get the address come up but the blue wheel spins and the page never loads. (this is the same in safari and chrome) but i can access some pages, and also thunderbird, msn messenger etc, i have cleared history, checked firewall, and done updates still no luck, also if i do get a page to appear ie: ebay / paypal etc they are in a strange format and then it fails at logins, is this a https/http problem or due to a upgrade or more sinister, please advise