While copper prices have started out weaker this morning, they aren't receiving as much pressure as other metals markets. Some traders feel that in order to turn sentiment around in copper, the market may require a clean sweep of favorable US data, a reversal in the dollar and a much stronger performance from US equities than is being shown during early Thursday US trading. Renewed weakness in Shanghai copper prices overnight, residual concerns toward the Euro zone, and fears of sharply higher oil prices have been widely seen as negative factors this morning.