After a solid start to the season, the Washington Capitals lost their second straight game in regulation on Wednesday night. It was the first time that had happened in 19 months. On Saturday night, they hope to get back on track as the opening month of the NHL season winds down when they face the Vancouver Canucks in the second part of Washington’s four game western Canadian road trip. The Capitals and Canucks face similar problems: they started the year off well, but now they can’t score. “We probably have to get a few more pucks on net and probably get a dirty goal rather than a pretty goal,” Canucks coach Willie Desjardins said Friday night. “We have to find a way. Washington and Vancouver are tied for the second fewest goals in the NHL with 14.