jQuery Grid Plugin - jqGrid

Hi there

I have been using v3.4 successfully for sometime,  I am now creating a new application and would like to use v3.5 for its theming.  I am using the json data type with a named value string. 

I am not using a pager,  when the data is retrieved I am seeing via Firebug that 108 rows are returned from the server,  however only the first 20 are displayed.  When I click a column header to sort,  no data is returned,  looking at the Params in firebug I can see that rows =  20 but also my sidx = empty rather than the column name I have clicked on.  Below is the jqGrid definitiona and the first few rows of my data, 

Could anyone help me out here please?

All the best

Alex

$('#SearchResults').jqGrid({
url:'i-BookLiteExtractHotelSearchJSON.asp?inGUID='+inGUID+'&inLocation='+Location+'&cb='+inCB+'',
datatype: 'json',
mtype: 'GET',
height: 350,
width: 670,
colNames:['hotelID','HotelName','Location', 'MinRate','MaxRate','Billback','Brand'],
colModel:[
{name:'hotelID', label:'hotelID',hidden:true},
{name:'HotelName', label:'HotelName.',width:180},
{name:'Location',label:'Location', width:140},
{name:'MinRate',label:'MinRate', width:70, align:"center"},
{name:'MaxRate',label:'MaxRate', width:70, align:"center"},
{name:'Billback',label:'Billback', width:60, align:"center"},
{name:'Brand',label:'Brand', width:100, align:"left"}
],
jsonReader : {
root: "rows",
page: "page",
total: "total",
repeatitems: false,
id: "hotelID"
},
sortname: 'HotelName',
sortorder: "asc",
viewrecords: true,
multiselect: false,
imgpath: '../common/themes/basic/images'

});

{"page":"1","total":"1","records":"108", "rows":[{"hotelID":"16469","HotelName":"38 Bath Street", "Location"

:"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"7141","HotelName"

:"Abode Glasgow", "Location":"GLASGOW", "Brand":"Classic British Hote", "MinRate":"79.00", "MaxRate"

:"105.00", "Billback":"Yes"},{"hotelID":"17422","HotelName":"Acorn Hotel", "Location":"GLASGOW", "Brand"

:"Private", "MinRate":"64.00", "MaxRate":"64.00", "Billback":"No"},{"hotelID":"13656","HotelName":"Albion

Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"}

,{"hotelID":"15234","HotelName":"Alexander Thomson Hotel ", "Location":"GLASGOW", "Brand":"Private",

"MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"7367","HotelName":"Argyll Guest House"

, "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID"

:"7203","HotelName":"Argyll Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"120.00", "MaxRate"

:"120.00", "Billback":"No"},{"hotelID":"13300","HotelName":"Artto Hotel", "Location":"GLASGOW", "Brand"

:"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"235","HotelName":"Babbity

Bowser Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback"

:"No"},{"hotelID":"7684","HotelName":"Best Western Glasgow City Hotel", "Location":"GLASGOW", "Brand"

:"Best Western UK", "MinRate":"0.00", "MaxRate":"114.95", "Billback":"Yes"},{"hotelID":"7684","HotelName"

:"Best Western Glasgow City Hotel", "Location":"GLASGOW", "Brand":"Best Western UK", "MinRate":"0.00"

, "MaxRate":"114.95", "Billback":"Yes"},{"hotelID":"2109","HotelName":"Best Western Glasgow Pond Hotel"

, "Location":"GLASGOW", "Brand":"Best Western UK", "MinRate":"75.00", "MaxRate":"190.00", "Billback"

:"Yes"},{"hotelID":"403","HotelName":"Blyths Wood", "Location":"GLASGOW", "Brand":"Private", "MinRate"

:"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"15739","HotelName":"Botanic Hotel", "Location"

:"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"545","HotelName"

:"Brunswick Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"45.00", "MaxRate":"45.00", "Billback"

:"No"},{"hotelID":"573","HotelName":"Buchanan Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate"

:"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"5348","HotelName":"Burnbrae Hotel", "Location"

:"GLASGOW", "Brand":"Spirit Group ", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"12589"

,"HotelName":"Burnside Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"54.95", "MaxRate"

:"65.00", "Billback":"Yes"},{"hotelID":"570","HotelName":"Busby Hotel", "Location":"GLASGOW", "Brand"

:"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"10189","HotelName":"Campanile

Glasgow", "Location":"GLASGOW", "Brand":"Campanile", "MinRate":"65.00", "MaxRate":"65.00", "Billback"

:"No"},{"hotelID":"7130","HotelName":"Carlton George Hotel", "Location":"GLASGOW", "Brand":"Private"

, "MinRate":"103.00", "MaxRate":"140.00", "Billback":"Yes"},{"hotelID":"697","HotelName":"Cathedral House

Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"}

,{"hotelID":"6995","HotelName":"City Inn Glasgow", "Location":"GLASGOW", "Brand":"City Inn", "MinRate"

:"79.00", "MaxRate":"199.00", "Billback":"Yes"},{"hotelID":"7674","HotelName":"Coachman Hotel", "Location"

:"GLASGOW", "Brand":"Oxford Hotels", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"2658"

,"HotelName":"Crowne Plaza Glasgow", "Location":"GLASGOW", "Brand":"Intercontinental Hotels", "MinRate"

:"77.50", "MaxRate":"209.00", "Billback":"Yes"},{"hotelID":"14909","HotelName":"Crowwood Hotel Glasgow"

, "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID"

:"5309","HotelName":"Dalmeny Park Country House Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate"

:"75.00", "MaxRate":"95.00", "Billback":"Yes"},{"hotelID":"14827","HotelName":"Dean Park Hotel", "Location"

:"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"15464"

,"HotelName":"Dreamhouse Apartment", "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate"

:"N/A", "Billback":"No"},{"hotelID":"6142","HotelName":"Eglinton Arms Hotel", "Location":"GLASGOW", "Brand"

:"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"},{"hotelID":"1283","HotelName":"Enterprize

Hotel", "Location":"GLASGOW", "Brand":"Private", "MinRate":"N/A", "MaxRate":"N/A", "Billback":"No"}

,{"hotelID":"15168","HotelName":"Etap Hotel", "Location":"GLASGOW", "Brand":"Etap", "MinRate":"N/A",

"MaxRate":"N/A", "Billback":"No"},{"hotelID":"1308","HotelName":"Ewington Hotel", "Location":"GLASGOW"

, "Brand":"Private", "MinRate":"99.00", "MaxRate":"99.00", "Billback":"Yes"},{"hotelID":"7070","HotelName"

:"Express by Holiday Inn Glasgow", "Location":"GLASGOW", "Brand":"Express by Holiday Inn", "MinRate"

:"69.00", "MaxRate":"86.50", "Billback":"No"},{"hotelID":"7516","HotelName":"Express by Holiday Inn Glasgow

Airport", "Location":"GLASGOW", "Brand":"Express by Holiday Inn", "MinRate":"58.50", "MaxRate":"65.00"

, "Billback":"No"},{"hotelID":"6104","HotelName":"Express by Holiday Inn Glasgow City Riverside", "Location"

:"GLASGOW", "Brand":"Express by Holiday Inn", "MinRate":"63.50", "MaxRate":"65.00", "Billback":"No"}......