I built my PC last night and set up Windows at my club. I took it home AN HOUR LATER, set it up, and went to install my drivers. I didn't get a signal on my monitor. I tried about 8 times and then gave up cause I was tired. I woke up the next day and deside to try using an hdmi cable to my tv. Still no signal. Can someone please help?! Everything I try doesn't work!