Hi, I've been looking for an answer but can't find anything. I have my monitor connected to the pc through the cable. It doesn't say "No signal" so the cable is fine, I'm guessing. It shows the LG logo, then says "Power Saving Mode" for a few seconds and then nothing, pitch black. I have tried 3 cables til' now, only one if them said No Signal, the other 2 said "Power Saving Mode" so I guess the cable is fine? What could the problem be?