I would guess its probably the connection between the Bvision and BPPC being a bit faulty, or the connection between the VGA cable and the socket on the BPPC. I get strange artifacts on my Bvision when its cold, I have to wait a few minutes for the connector to warm up so it makes a good contact, I sometimes get strange dots on screen on some boots, I think thats also related to the connector. However im not prepared to fiddle with it, It works in a fashion so thats okay for me :-)
