tableToGrid & knockoutjs - jqgrid

Question

I'm having a pb with jqgrid used with knockoutjs.
I have an HTML table witch contains checkboxes binded using konckoutjs that works fine,
but when i fired the tableToGrid function of JQGRID, my checkboxes lose their binding.
Thanks
JS
var listuserProfile = [];
var viewModel = {
userProfile: ko.observableArray(listuserProfile)
};
$(document).ready(function () {
//Fire knockoutjs
ko.applyBindings(viewModel);
//Init the user profiles list
viewModel.userProfile(#Html.Raw(Json.Encode(Model.UserProfiles)));
tableToGrid("#userProfiles");
});
HTML
<table id="userProfiles">
<thead>
<tr>
<th>User</th>
<th>Admin</th>
<th>Manager</th>
<th>ADV</th>
<th>HR</th>
<th>DG</th>
</tr>
</thead>
<tbody data-bind="foreach: userProfile">
<tr>
<td><span data-bind="text: User"></span></td>
<td><input disabled="disabled" type="checkbox" data-bind="checked: Admin" /></td>
<td><input disabled="disabled" type="checkbox" data-bind="checked: Manager" /></td>
<td><input disabled="disabled" type="checkbox" data-bind="checked: ADV" /></td>
<td><input disabled="disabled" type="checkbox" data-bind="checked: HR" /></td>
<td><input disabled="disabled" type="checkbox" data-bind="checked: DG" /></td>
</tr>
</tbody>
</table>
without the call of the tabletogrid it works fine!!!