Print from flash

The following works on a mac but not on windows. Only the background prints on windows.
Is there a different setting for windows? Do I need to put it together on flash on windows?

thanks

on (Release) {
var pj = new PrintJob();
var success = pj.start();
if(success)
{
pj.addPage(0,{xMin:0, xMax:830, yMin:0, yMax:600}, {printAsBitmap:true}, prt2);
pj.send();
}
delete pj;
}