My games starts and plays as expected except shortly (30 seconds-1 minute) after start it will begin to flash bright colors. after a short time, the screen will begin to roll horizontally at various (usually increasing) speeds. It is actually hard to look at after a while. If you stay in game long enough, it may (1 in 5 chance?) stop and act normally. It will then restart 30 seconds to a minute later though. This started about 3-4 weeks ago. In the beginning it would do it once in a while. It now does it every time.