iPad Safari cache problem after iOS 5 installed

There is an annoying problem in Safari on my iPad 2 since updated to iOS 5. When I navigate to a web page that I have visited recently, I am taken to an old version of the page displaying more recently-posted content. The Safari just loads the page from its cache. I tap Setting > Safari > Clear History > Clear Cookies and Data, but not working.I think the Safari is loading some old cached