You just posted that explorationguy is 100% correct (below) - which is the same thing I said in different words:

"The FOREX line accounts for changes in exchange rates while the copper and gold lines account for changes in commodity prices independent of exchange rates. Falling commodity prices have to have a negative impact on NPV"

If the copper and gold lines are independant of exchange rates (in $USD), the dot should be on the negative side - not positive. we don't have $3.25USD copper anymore, its around $2.80USD. That is approx 15% to the negative.

You can't claim FOREX credits twice on the same chart, no matter how much as you want to...