ok I just followed these tutorials (http://www.youtube.com/watch?v=tdgbZxi2gU0&feature...http://www.youtube.com/watch?v=tJjRa-D7QAY&feature... and now whenever I play singleplayer and I destroy a block or a mob it says "saving chunks" on the dirt background thn after like 5 seconds of that there is just a big black screen and I can move my crusor but I have to exit minecraft and start over to play again. it's really annoying and I want it to stop. please help me?Update:and I don't ant to play any other game at the moment so please help me out??. Created by Kurtis Bob. games-recreation-en - video-online-games-en

Saying your running on the payed version and not the hacked, start up minecraft and click options. under options, click force update. Once you log in, it will reset the bin to factory settings, which should clear up any errors. As for installing the Aether mod, i suggest you find a tutorial on how to do it with WinRAR or 7zip. Both programs are free (although WinRAR starts to ask you to pay for it), and is the commonly used method to properly install mods.