Windstream Corp. (NASDAQ: WIN) shares slipped 1.5% to $8.80 as the company swung to a fourth-quarter profit and revenue increased 28%. The rural-telecommunications company said profit was $10.1 million, or two cents per share, compared with a loss of $34.7 million, or seven cents a share, in the year-ago period. Adjusted earnings were 11 cents per share. Share volume totaled 6.1 million, compared to an all-day average of eight million