I have downloaded minecraft off the official site and when I went to click play on the launcher the game came up and said MOJANG as it usually does but then the game disappeared and went back to the launcher.
[09:48:15 INFO]: Minecraft Launcher 1.4.4 (through bootstrap 5) started on windows…
[09:48:15 INFO]: Current time is May 30, 2014 9:48:15 AM
[09:48:15 INFO]: System.getProperty('os.name') == 'Windows 7'
[09:48:15 INFO]: System.getProperty('os.version') == '6.1'
[09:48:15 INFO]: System.getProperty('os.arch') == 'x86'
[09:48:15 INFO]: System.getProperty('java.version') == '1.7.0_55'
[09:48:15 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[09:48:15 INFO]: System.getProperty('sun.arch.data.model') == '32'
[09:48:16 INFO]: JFX has been detected & successfully loaded
[09:48:18 INFO]: Refreshing local version list…
[09:48:18 INFO]: Refreshing remote version list…
[09:48:19 INFO]: Refresh complete.
[09:48:21 INFO]: Loaded 1 profile(s); selected 'Kyrababexo'
[09:48:21 INFO]: Refreshing auth…
[09:48:21 INFO]: Logging in with access token
[09:49:07 INFO]: Getting syncinfo for selected version
[09:49:07 INFO]: Queueing library & version downloads
[09:49:08 INFO]: Download job 'Version & Libraries' started (16 threads, 28 files)
[09:49:08 INFO]: Attempting to download C:\Users\User\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'… (try 0)
[09:49:08 INFO]: Attempting to downlo