A softer stance from the Federal Reserves knocked the dollar down on Thursday but failed to lift stock markets in Europe, where the looming deadline for Greece to get a new debt deal kept investors nervous. In contrast, Japan’s shares hit a 15-year high as the minutes from the Fed’s meeting in January showed officials were concerned about hiking interest rates too soon. Investors revised their expectations for the timing of a first Fed hike and the trajectory of rates for the next couple of years.