Hey everyone I'm having problems with my display port. Im not sure what the reason is but it was working fine last night. However, when I woke up today, my external monitor suddenly stopped working. I just switched from a display port-vga adapter to displayport to thunderbolt adapter yesterday. Does anyone have any idea what the cause might be. I recently switch my hdd with an ssd so if I took my macbook in for apple care, I would need to remove all the modifications I put into my mac.