Loop logic for splitting an array of curves, c#

Hi,

I have a logic brain teaser that I've become stuck over. I need to split a series of lines that are stored in a single dimensional array. The resulting split lines will be stored in a multi-dimensional array. I've noticed that the first loop works perfectly, cylcing through the empty split array (called gtSplit) and filling it with null.  The second loop is faulty tho. It tries to fill the array with the split parts.

Logically every original curve (i) gets divided into two parts, and one division operation produces two pieces (j). The loop is designed to produce two j for every i. 

Any thoughts?

Code: note that gtCurve is the incoming curve array of an arbitrary size and that gtLength is the measured length of a curve (double), not the number of elements in the curve array.

// Counter for gtCurve

int[] count = gtCurve.Length;

// Array to hold split curves, note that the original curve is split into two parts 

Curve[,] gtSplit = new Curve[count,2] 

// Loop designed to fill gtSplit with null

for (int i = 0; i < count; i++) // cylces through the original curves (think array rows)

{

for(int j = 0; i < 2; j++) // cycles through the array columns to fill them with null

  {

  gtSplit[i,j] = null;

  }

}

// Loop designed to fill gtSplit with split parts

for (int i = 0; i < count; i++) // cylces through the original curves

{

for(int j = 0; i < 2; j++) // cycles through columns to fill with split parts

  {

  gtSplit[i,j] = gtCurve[i].Split(gtLength[i]/2);   //error code

  }

}

The error provided on trying to execute the code is:

"Cannot implicitly convert type Rhino.Geometry.Curve[] to Rhino.Geometry.Curve"

The error stems from the line of code commented as "error code"

I'm a little puzzled by the error because my variables are each arrays (I have never defined variables as single elements). So I guess I'm wondering if this is this coming from something deeper in the method or my logic?