MINYANVILLE ORIGINAL Another trading day another day of uncertainty over the fiscal cliff. US stocks continued to fluctuate between gains and losses in mid-Tuesday trading with strong earnings from Home Depot (NYSE:HD) unable to negate worries about the US economy.   "We're back to focusing on macroeconomic issues with people trying to position themselves ahead of the fiscal cliff especially with Europe still a threat " Doug DePietro head of trading at Evercore Partners told Reuters. "I don't feel like there's an underlying bid on the market."   The Dow Jones Industrial Average (INDEXDJX:.DJI) was up 0.43% to 12 ...