Cheat Engine

[3heroes]

Hey guys I just started using Cheat Engine a few days ago I finished step's 1-7 in the tutorial hacked a few flash games but now I'm trying to make a Trainer for StarCraft (not online) just for practice.

Ok so I open StarCraft start a game with a few computers then I find my Mineral value and I end up with 5 addresses 2 of them are the same every game and 3 of them change so I add the unchanged ones "0068D2D4" and "02938928", "0068D2D4" is Green and I think that means static and "02938928" is Black I think that mean Dynamic so I find out what Accesses "0068D2D4" and it comes up with 3 codes
"004AA30B - 8B 45 00",
"004AA340 - 89 45 00 ", and
"004AA34B - 8B 45 00"
They all say "the value of the pointer needed to find this address is probably "0068D2D4" which is the address that I already have
So I do the same thing for "02978978" I find out what writes to it and it comes up with an address "02978952" its different, so I make a new scan Tick Hex and make a pointer for "02978978" then I quit the match and start a new match and when I change the values my minerals go all buggy and keep on changing from 0 - the value I froze it at really fast so again I find out what writes to "0068D2D4" I right-click and press "Replace with code that does nothing (NOP)" I start a new match this time my minerals are frozen at whatever I set them at but when I try to make a Pylon or Supply Depot it says "Not enough minerals...mine more Minerals" even though my Minerals are at 9999 can someone help me, What am I doing wrong? If you need more information I can post pictures.

~3Heroes