C# memory question

I am trying to run a c# program which loads very large arrays (total
of about 1.2GB). I have 2GB of RAM on my machine and looking at task
manager it doesnt look like it has all been used. I have set virtual
memory (ie disk space to be used as RAM) to 3070MB. I have tested my
RAM using a RAM testing utility and it seems fine. I am getting an out
of memory error.

I started by using visual c# 2002 but someone told me that it was
buggy so I swithced to visual c# express...but no help. I cut the
program down to a very simple test version...which follows. Are ther
any setting I can change on my PC or within c# to get this to work?

here is the code:
using System;

namespace test1
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class testmain
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			try {
				testclass testclass1 = new testclass();
			}
			catch {
				int yyy=4;
			}
		}
	}
	class testclass {

		double [] frogarray;
		double [] frogarray1;
		
		public testclass() {
			frogarray = new double[150100000];
			frogarray1 = new double[50000];
			int aaa=3;
		}
	}
}