""ATTENTION NINTENDO CONSOLE OWNERS" say the ads running these past two weeks in newspapers and magazines. It seems Nintendo of America was sued by the attorneys general of all 50 states and the District of Columbia for allegedly fixing the price at which retailers could sell its game machines, or "consoles." To make amends for any overcharges, Nintendo is now offering "significant relief" to all who bought between June, 1988, and December, 1990. To government, significant relief is $5, though it's not much to people who paid $99.95 for a console set, and hundreds more for games ($20 to $60 each). They must spend more yet to get it: The relief isn't money, but a coupon for $5 off the purchase of more Nintendo games."