Hello and thanks in advance for any help! I've had my computer for around 11 months now and it has tan flawless until now, about half an hour ago I knocked my computer slightly and ever since then my DVI-D port fails to work. Upon connecting it my monitor seems to receive a signal or impulse due to it black screening for a few seconds, the monitor then goes into power saving mode. DVI from the motherboard work fine it's just directly from the gpu where the problem stands. I'm a noob when it comes to computers and was wondering whether this is an easy fix e.g. A cable unplugged or requiring a replacement/repair? Thank you for any help.