Hello! My customer has the same problem

Not implemented
jquery.jqGrid.min.js
Kode: 0
URI: http://…/jqGrid/js/jquery.jqGrid.min.js

Linje: 10
Tegn: 167375

IE version 8
Version 8.0-6001-18702

Unfortunately It's impossible to provide any other information from the customer and help you in debug.

I've successfully tested the same case in other IE8 – and it was without any problem.