Log in and use W key, kicks me back to the development console.

Help! I am a gaming novice...this keeps happening
Client> 2013-07-27 14:15:05 [SERVER] [INFO] Junior8073 joined the game
Client> Setting up custom skins
Client> 2013-07-27 14:15:09 [SERVER] [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
Client> 2013-07-27 14:15:25 [SERVER] [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
Client> #
Client> # A fatal error has been detected by the Java Runtime Environment:
Client> #
Client> # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000084c1, pid=4184, tid=388
Client> #
Client> # JRE version: 7.0_25-b17
Client> # Java VM: Java HotSpot(TM) Client VM (23.25-b01 mixed mode, sharing windows-x86 )
Client> # Problematic frame:
Client> # C 0x000084c1
Client> #
Client> # Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
Client> #
Client> # An error report file with more information is saved as:
Client> # C:\Documents and Settings\Nell\Application Data\.minecraft\hs_err_pid4184.log
Client> #
Client> # If you would like to submit a bug report, please visit:
Client> # http://bugreport.sun.com/bugreport/crash.jsp
Client> # The crash happened outside the Java Virtual Machine in native code.
Client> # See problematic frame for where to report the bug.
Client> #
Client> AL lib: (EE) alc_cleanup: 1 device not closed
Game ended with bad state (exit code 1)
Ignoring visibility rule and showing launcher due to a game crash
Deleting C:\Documents and Settings\Nell\Application Data\.minecraft\versions\1.6.2\1.6.2-natives-5511596875016
Couldn't delete C:\Documents and Settings\Nell\Application Data\.minecraft\versions\1.6.2\1.6.2-natives-5511596875016 - scheduling for deletion upon exit
Deleting C:\Documents and Settings\Nell\Application Data\.minecraft\versions\1.6.2\1.6.2-natives-5511596875016
Getting syncinfo for selected version
Queueing library & version downloads
Download job 'Version & Libraries' started (8 threads, 19 files)