Despite raising his batting average by 51 points in his last 10 games, Chicago White Sox slugger Adam Dunn remains baffled that he's not more productive.

"It's hard to sit there and say, 'I feel good' continuously when the results aren't good," Dunn said Monday before going 1-for-3 with a walk in the Sox's 2-1 victory against the Royals. "In saying that, I do feel good. The problem is when I'm getting a pitch to hit, I'm fouling it off. And when I do put them in play, I'm popping them up, hitting them at people.

"So it's past the point of frustration because usually when I feel good, good things happen. And nothing is happening. So we just got to keep going."

Dunn, who lined out to right field but ripped a single that led to a run in the s win, said hitting coach Jeff Manto has looked closely at his stance and swing. Dunn continues to hit off a batting tee, a drill that helped him last season.

"It's still part of the routine," said Dunn, who is hitting .151. "I just know I need to quit fouling off the pitches that I could do damage with, and that's what I'm doing.''