This morning I went into the Off-Topic Discussion area, and within a few second this came up, I hit cancel but it continue's to come up, I thought I might have a virus so I checked my PC and nothing there, and this is only coming up in that area no place else that I've noticed. It comes up twice which I hit cancel, but when I go into a topic in the Off-Topic area and go back to the Off-Topic area it's not coming up again until I revisit the RPF and go back into that section. Here's a screenshot.