jQuery Grid Plugin - jqGrid

Please
I'm having trouble in the table by using the frozen, the function fuinciona the usual problem that the table is transparent and then you can see the content "scraping" below the frozen columns, then looked for a way to change the line to a solid color but this caused me another problem, all opação selection and click stop, does not change color "hover" or "onlick"

 

COD EXEMPLE:

loadComplete : function() {
var table = this;
$("tr.jqgrow:odd").css("background", "#FFFFFF");
$("tr.jqgrow:even").css("background", "#FFFFFF");

Removing this code works as usual