jQuery Grid Plugin - jqGrid

Hello,

I'm using jqGrid 3.7 beta. "rownumbers: true" work's incorrectly. Numbers begin with "row_number – rows_count" and increment by 1

Here is my jqGrid initialization code and retrived json:

$(grid).jqGrid({
                caption: 'some caption',
                url: '<%= Url.Action("Calculation", "Analytics", new {calcId = Model.Data.Id}) %>', [asp.net mvc magic]
                mtype: 'POST',
                datatype: 'json',
                loadui: 'block',
                loadonce: true,
                colModel: colModel,
                rownumbers: true,
                gridview: true              
            });

{"rows":[
{"id":"1","cell":["string1",1,122466.740000]},
{"id":"2","cell":["string2",3,15113.070000]},
{"id":"3","cell":["string3",2,0.000000]}
]}


here is my colModel variable:

var colModel = JSON.parse('[
{"align":"left","index":"B","label":"label1","name":"B","sortable":true,"sorttype":"text"},
{"align":"left","index":"BB","label":"label2","name":"BB","sortable":true,"sorttype":"float"},
{"align":"left","index":"BC","label":"label3","name":"BC","sortable":true,"sorttype":"float"}
]');