MINYANVILLE ORIGINAL US stocks stayed all but flat with major indexes trading in a narrow band at midday on expectations that the Federal Reserve will announce a new round of bond-buying at the end of its two-day policy meeting later.   "The market is waiting on the Fed anticipating the open check to be out again but we will see. Anything less than enormous will be disappointing to the market " said Joe Saluzzi co-founder of New Jersey-based brokerage Themis Trading according to Reuters.   The Dow Jones Industrial Average (INDEXDJX:.DJI) was up 0.05% to 13 255.20 points as ...