(by Ron Wolfson/Wireimage.com)

About 20 Dixie Chicks shows, including an Oct. 3 Nashville date, went on sale this past weekend, and a source close to the tour called the sales “disappointing,” reports Nashville’s daily newspaper The Tennessean. And according to Ray Waddell, Senior Editor, Touring, for Billboard on billboard.biz, “the status of the shows in Oklahoma City [Sept. 26] and Houston [Sept. 30] remains uncertain.” But not all shows are below projections—Billboard reports that early figures were good for their dates in Philadelphia, July 25, and Toronto, Oct. 28, where a second show was added. The slow concert tickets sales come as a slight surprise, as the trio’s new CD, Taking the Long Way, recently hit No. 1 on both the Billboard Country Albums chart and the Top 200.