First, whoever you are, you should congratulate to me on my 1000th post. 😉
Second, DNA is often cited as being so software-like that it must’ve come from mind.
You might say that software invariably comes from minds, but you forget that minds invariably comes from brains. So where is the brain that houses God's mind ? And, no, software doesn't invariably come from minds. Software can be evolved in a computer where it is randomly changed and tested for fitness, analogue to what happens DNA in the real world.
Third, what we conceive and what is real, both are opposed to each-other. Someone is real if he is occuring in a fact, it doesn't matter he comes in our mind or not. You mentioned only a property of god 'creator'. Properties does not prove any being's existence. The property can't be reduced to existence either. This world has 753 crores people and 633 crores of them, are theists. Suppose property can prove someone's existence. Yet we can exactly count 'how many people he creates'. If some supposed entity creates more people than him, he cannot be said ultimate creator. Can he ?
Fourth, assume I'm a theist and I think absolute devil one created me. I can count this ‘absolute one’ and can prove one more thing which is ‘more absolute than devil is’. The old devil cannot be proved. I found devil is A={1,2,3,4,5}. I can find set B which is more absolute than that of devil. Set B={1,2,3,4,5,6}. And if you still think it does not disprove devil’s existence. There is no theist till the date, who can accept devil’s and god’s existence simultaneously.