Zero condition problem

There is a problem with the zero condition feature. For example (zero dist at 200yds):
Zero temp: 0 celsius
Daily temp: 0 celsius
At 1000yds this will give the exact same results that if I entered:
Zero temp: 30 celsius
Daily temp: 30 celsius
In the real life this is absolutely WRONG!!
Please fix it!!
Thx

LtTonio about iSnipe, v4.1.7