I have noticed a problem with advertisements on Daniweb, sometimes when scrolling they seem to 'break free' off their places.
If I scroll down the page, or scroll up the page they move around, sometimes moving to the left and blocking the question, sometimes moving over the navigation bar etc. I'm using Ubuntu 12.04 with Firefox 19.0
When the article first loads it shall be in the correct place but then when I move they move out of line.