Box score DENVER – For the initial three innings Thursday, the Astros performed like they had no interest in winning a four-game series against the Colorado Rockies and continuing their surprising step forward during the second month of the 2013 season. The Astros committed four errors, trailed 3-0 and were mentally uninvolved in an interleague contest at Coors Field. But their play sharpened during the fourth and fifth innings. A six-run outburst in the sixth then carried the Astros to a 7-5 come-from-behind victory, giving them a 3-1 series win against Colorado and moving the club to .500 in its last 14 games. Astros (17-37) manager Bo Porter said his [.]