Compaq presario not working

Hello,
My compaq presario,cq40-330tu with Windows 7 has stopped working. I try to start it up, but all it gives me is the beginning Compaq logo loading screen and for the windows loading screen it only gives me the little loading bar at the bottom. The windows logo does not show at all. After those two load up, it goes to a black screen and just completely stops loading. The hard drive stops working as in the light doesnt blip anymore and it just stays at a back-lit black screen. I can sort of hear the fan going, but it stops after a while.
I left it on over night thinking maybe it was loading something, but still after that it was just at the black screen. Hopefully nothing is wrong with the hard drive. I kinda read around and people said it's probably related to the video card? Also, the first time this happened it gave me the option to go into safemode, but instead I just held the power button down to restart it. It no longer gives me the option to start up normally or in safemode. It doesn't show the screen at all. Thanks for reading and I hope there is a solutuion to this problem. My one year warranty from compaq ran out, a couple days ago.