Markets opened relatively flat but bonds are improving in afternoon trading due to weakness in stocks.  In economic news, Initial Jobless Claims for the week ended 8/21 were down to 473,000 vs expectations for a 485,000 # and a revised 504,000 for the prior week.  Continuing Claims for the week ended 8/14 were down to 4.456 million  vs expectations for a 4.515 million # and a revised 4.518 million for the prior week.  Despite better employment data investors are jittery in front of tomorrow's 2nd estimate of 2nd Qtr 2010 GDP data.  Analysts are expecting 1.4% growth.