[josxdr]

If you can keep your VI size small enough, then the "eyeball diff" method may work. As long as you don't need to scroll around, if you can size the windows the same size and look at them side-by-side, maybe this is good enough to see the changes??? Does anyone have experience with this? I must agree with the first poster, not having access to graphical diff is a major drawback to using LabVIEW. Maybe NI can provide a special crippled version for FRC?