What causes this?
 

www.bikinivoyeur.com/gfy-cap.jpg

ie8 Vista

I can refresh and it goes away. Or scroll down then back up and it goes away. It wont do it again unless i reload the page in a new browser again.

i found that a few months ago.

but it tended to be only one line.

it happened a lot.

but last few months its been ok.

in my case, it's liquor.

Did not happen to me with my IE and Firefox browsers.