Acer has done better with Google's Chrome-based notebooks than with Windows 8 devices, according to the company's president.Acer hasn't been doing well lately, and the company is pointing a finger at weak demand for Windows 8."Windows 8 itself is still not successful," Acer president Jim Wong told Bloomberg in an interview published yesterday. "The whole market didn't come back to growth after the Windows 8 launch, that's a simple way to judge if it is successful or not."Acer was stung by an annual loss in 2011 and will post another loss for 2012, according to the Wall Street Journal. Last week, the company announced a $120 million write-off