I thought of that, however, all of my other returns are calculating correctly.  The only difference is this one has a child tax credit and the others did not.  On the 1040 Worksheet, Part 1, Line 8 is not being added like it states it should for Line 8a, therefore, Line 8b is incorrect.  The only weird thing is that Line 24 on the 1040 is correct.  Just the math is wrong.  Computer not calculating refund correctly.