why cant i stay logged into the game.i get disconnected after about a min.every time.

1st Check for any windows updates, and make sure video and sound card driver are the latest versions. Update anything that is not. Then try.

If you still getting this issues might have a file messed up in your LC file.
I would delete LC (save any screen shots you might want), clean your PC make sure all LC files are gone. Then redownload the game.