It has stopped working so i re-installed it. But it still won't work it jsut comes up with the following message. I have pput the end of it. I assume you know what i'm going on about if your answering this.
Exception: java.net.SocketTimeoutException: Read timed out
Downloading: https://s3.amazonaws.com/....pack.lzma" class='ext_link'>https://s3.amazonaws.com/....pack.lzma (try 9/10)
Got reply in: 2330ms
Exception: java.net.SocketTimeoutException: Read timed out
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma (try 10/10)
Got reply in: 21856ms
Exception: java.net.SocketTimeoutException: Read timed out
Unable to download remote file. Check your internet connection/proxy settings