Hi, I am in the process of building a computer and I need help installing the Cooler Master Hyper 212 heatsink/fan. I have a 1155 LGA intel motherboard. I have installed the back plate, but when i try to get the spring screws that hold the heatsink into place, they will not fit in all 4 holes simultaneously. I have watched installation videos, but the problem is that whenever I install one screw, the one diagonal from it is over the hole, but it is way higher than it should be, so i cannot get it to the point where i can use a screwdriver to install it. Any tips? Thanks!