I turned on my computer today and my screen was acting a little strange. The monitor kept making this weird "rippling" effect. I checked all my connections and they seemed okay for the most part. A couple were a little loose. I still get a little rippling though. The system was fine yesterday and I didn't change any video settings since then. I believe that this has happened before but I think it just went away after 10 mins or so. Any ideas? It might just be something little like dust er something I don't know.