I am returning the monoprice 3x1 switch which is hooked to dvi1 and they said for me to try the 4x1 switch because on the 3x1 switch I loose the picture after a few minutes and I am having the switching problem also between the ha2 and the sony bds300 and then I have the sony 400 disc changer on dvi 2 . Even with all 3 to the switch I have had nothing but problems. I also ordered the accell ultra hdmi switch ,which has not come yet, almost double the price and it got very good reviews. I will see which one works and return the other