Unable to use after shutting lid.

After shutting the lid to my 2007 Macbook Pro I then later re-opened it and found that the display was not showing on my TV (plugged in via DVI-HDMI). I tried unplugging my external HDD and TV but it still does not work, it seems to go into a constant state of sleep when ever it has power. I push the power button, I hear the Macs all to familiar booting sound, the front LED is lit but I can't see anything (I've tried using the dimmer to no avail) I am using Leopard by the way with the latest updates.

I tried resetting the System Management Controller (SMC) using http://support.apple.com/kb/HT1411?viewlocale=en_US as a guide but it didn't work, and actually now my front LED is no longer turning on. After I closed the lid the LED went back on, then I hit the space bar a few times and tried to use the dimmers, nothing.

I will continue to fiddle with it in the hopes of getting to work.

 

That is also what I do when it is plugged into my TV. I already tried pressing my external keyboard and mouses buttons and nothing happens. I can hear the volume going up and down when I use my keyboard or my Macs keyboard to adjust the volume, so the sound is working, just not my display.