I get the same thing happening when I use the AOL browser so I have decided to transfer my favourite websites listing into either Firefox or Internet Explorer and ditch the AOL browser.
I get this happening loads of times while on PCA as I get a 'Session is expired' error message and the only solution I have found is to log off and then log in again.
When I use IE or FF I *don't* get these errors.
Also on some websites when I attempt to open certain 'active content' like a online video for example, the webpage just refreshes.
Sorry it isn't a solution to your problem but it's the only solution I know!