static array crashes my program

[ref2401 via Digitalmars-d-learn]

I want to create a static array large enough to store 1MB of 
float values.
What am I doing wrong?
Here is a sample code with notes:
void main(string[] args) {
        enum size_t COUNT = 1024 * 512 / float.sizeof; // works OK :)
	//enum size_t COUNT = 1024 * 512 * 2 / float.sizeof; // 
constantly crashes :(
        float[COUNT] arr;
        writeln(arr.length);
}

DMD: 2069.2
OS: Win 8.1 Pro