Dow Jones Business News Gateway Posts Weaker 4Q Results, Gets SEC NoticeWednesday January 29, 5:41 pm ET POWAY, Calif. -- Gateway Inc. (NYSE:GTW - News) swung to a net loss in the fourth quarter on lower revenue. The personal-computer maker late Wednesday reported a net loss of $72 million, or 22 cents a share, compared with year-earlier net income of $9.4 million, or three cents a share. Revenue fell 7% to $1.06 billion from $1.14 billion. The company warned earlier this month it expected a loss of 18 cents to 19 cents a share on revenue of $1.06 billion. Gateway...