Getting Page Cant Be Displayed.

I am on the message forums of www.tradespot.net and using the search feature which worked fine until SP2 was installed. Now when I do a search and it pulls up the posts found and I click that post to read it than click back to go back to that list, when I click back I get “The page cannot be displayed” Before SP2 I would go back to my list of posts and this is very annoying. I am sure there is a fix for this but thus far havent had any luck finding it.

Thanks for your help

Lynn