Dow Jones Industrial Average index prolonged its downward movement on Wednesday after Fed's Chairman Ben Bernake warned the crisis has not finished yet in Europe and the region has to put much effort to completely resolve it. Blue chip index fell 0.35% or 45.57 points and closed at 13,124.62. Hewlett-Packard pushed the Dow into red, tumbling 2.2% after company said it would merge its printer and PC units to cut costs and raise efficiency. HP is struggling with fading sales of PCs as smartphones and tablets gain popularity.