have u already download jqgrid demo ??? I suggest u to download it first…., I already download jqgrid_demo3.8 but not working properly on my pc, then I download jqgrid_demo3.6 and thats work fine …. but still can't doing crud my data on mysql. but dont worry… this is example of doing crud using jqgrid here.
about your blank screen…I worried about some jquery not yet include on your script…