How do i get my scanner to work with the pos. I have a standard usb scanner and is able to scan the barcode to any application, but the pos is doing nothing. From what i was able to read i need to setup some proxy or something. How do you do that? I need to add my pole display, cashdrawer and slip printer ass well. I read that proxy require client install of openerp, but how do i make client install connect to server?