XY to Line goes through 0,0

Hi,

I have a .csv file that I am trying to convert to lines. Each row has an ID, X0, Y0, X1, Y1. The XY to Line tool seems to be exactly the function that I need to use, but whenever I do this it takes my line from X0Y0 to 0,0 and then to X1Y1. How do I stop this happening and take it straight between the two points?

Help desperately needed!
Many thanks,
George