Hey guys, I really need some help with my monitor (vp2770) while I try to connect my macbook pro 15 inch (non-retina) with mini display port to display cable. thats basically what happens, I used the same mini display port to display cable connect to two different macbook pro 15 inch (non-retina) and they both appear to have some screen issues. HOWEVER, when I use the same cable to connect to my friend's macbook pro 13 inch(retina), it works perfectly, hence no red vertical lines or statics dots. I run out of options here. I waited the monitor for 4 weeks and now it seems like its not working with macbook pro 15 inch? Or should I get another cable? thank you all in advanced.