I have a mac mini and my original display ( an AOC ) worked and then started going bad. I purchased a emachines vga display from bestbuy and it worked great until a couple days ago. Now I get nothing, absolutely nothing. The mac powers up and I hear the chime and fans working, but no picture. I am using the vga adapter from apple and right now, I am at wits, education, basic computer knowledge and patience end. If anyone can help, please help!