My screen is going black and the phone acts as though it is on and everything is working but I can't get the screen to change from being black... Any thoughts?

[jdt]

I have had my Droid 2 for about a year and a half now. I had no problems with it until a few months ago when that update came out.  All the sudden the phone would freeze up then all of a sudden yesterday I was texting a friend and had the keyboard open then the screen went completely black.  I tried rebooting the phone...pulling the battery... and then doing a hard reset...  Nothing works. I cant even really do a hard reset because the screen is black.  Any thoughts?