What do I do? I barely understand the technical support problems, and I really want to play.......I'm only 14 years old and I don't know what to do. When ever I want to play, it turns into a black screen. In a few seconds, it pops up the error thing. It also doesn't work on the downloaded one. Can somebody help me? Can anyone tell me what I need to do?

Windows 7
-Latest Java
-Display 1440 x 900 (32 bit) (75Hz)
-2.2GHz Processor
-889 MB Video Memory. GeForce 6100 nForce 405
-2048MB RAM
-232 GB hard drive space