hit point bonus upgrade not working

hit point bonus upgrade not working

this may be an easy question but i can not get hit point bonus upgrade to work. i just changed the bonus amout base and increment per lvl, and the gold and lumber price, and didnt not change anything, and the race is set to human, but it does nothing in game. help?

i just did this today..

-make sure the units you want to have the upgrade has it in his upgrade info
-set upgrade to work on all units
-if it requires a certain tech or building.. make sure you have it, or delete the tech requirment

ha thanks for reminding me buddy, i totaly forgot to make the upgrade apply to the units by adding it to the upgrades used section. works fine now

its always the simple things