Bold 9700 Browser not closing

I have a Blackberry Bold 9700 OS6. Lately when I go to a website, it stays on that site, despite my clearing cache and closing browser. As soon as I hit the browser, it reopens at the same site I was just on. I cleared all history, but the site remains like I didn't. I can close it, go to the phone, and back to the browser, and the site I deleted is there open. So it takes mulitple closes or holding down the return arrow key to force a close. What is wrong do you think? Nothing else changed on it. Thank you...