When reading a Cursor from a resources file an ArgumentException is thrown

When I use a MemoryStream to load a Cursor from a resources file I receive an ArgumentException. Here is the code I use to load the cursor:

Cursor myCursor
    = new Cursor(new MemoryStream(WaterforMGC.Properties.Resources.waterspray));
Cursor = myCursor;

But I get the error. I have no idea what is wrong, I even changed Cursor = myCursor; to this.Cursor = myCursor; which gave me the same error. I tried gameform.Cursor = myCursor; but that didn't work at all.

System.ArgumentException: Image format is not valid. The image file may be corrupted.
Parameter name: stream ---> System.Runtime.InteropServices.COMException (0x800A01E1): Exception from HRESULT: 0x800A01E1 (CTL_E_INVALIDPICTURE)
   at System.Windows.Forms.UnsafeNativeMethods.IPersistStream.Load(IStream pstm)
   at System.Windows.Forms.Cursor.LoadPicture(IStream stream)
   --- End of inner exception stack trace ---
   at System.Windows.Forms.Cursor.LoadPicture(IStream stream)
   at WaterforMGC.gameform.Form1_Load(Object sender, EventArgs e) in C:\Users\Jan\Documents\Visual Studio 2008\Projects\WaterforMGC\WaterforMGC\Form1.cs:line 39
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)