Screen spots in iWeb
An odd one - I've been using iWeb for years and something just happened tonight. I'm using one of the black/grey background templates in one of my websites and suddenly I noticed two white spots appear, tiny, like dead pixels. But when I deactivate iWeb as the live programme (click on some other application window) the spots disappear. Yet if I, for instance, grab the active iWeb window and move it about on screen, the white spots will appear on other open application windows, as if they're travelling across the screen with the iWeb window. The moment I let go, the white spots disappear. In other words, they will only appear if iWeb is the active programme being used. Anyone got any ideas? Thanks.
Mac Pro, OS X Mountain Lion (10.8.1)