Same problem:
[0418/213352:INFO:LauncherAppBrowser.cpp(24)] Work dir is C:\Users\mike\AppData\Roaming\.minecraft
[0418/213352:INFO:ClientHandler.cpp(182)] Creating launcher window.
[0418/213353:INFO:LauncherAppRenderer.cpp(110)] Javascript bridge extended.
[0418/213355:INFO:ClientHandler.cpp(846)] Preferences / startup: Read preferences
[0418/213355:INFO:ClientHandler.cpp(846)] Preferences: Wrote preferences
[0418/213355:INFO:ClientHandler.cpp(846)] Configurations: Loading profiles
[0418/213355:INFO:ClientHandler.cpp(846)] Configurations: Loading settings
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Read authDB
[0418/213355:INFO:LocalVersionProvider.cpp(81)] Looking for installed versions in C:/Users\mike\AppData\Roaming\.minecraft\versions
[0418/213355:INFO:ClientHandler.cpp(846)] Updating server status
[0418/213355:INFO:GameController.cpp(216)] Reinstancing game callbacks...
[0418/213355:INFO:ClientHandler.cpp(846)] GameStarter: Previous instance(s) found
[0418/213355:INFO:ClientHandler.cpp(846)] Did not send startup event
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Validated token
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Wrote authDB
[0418/213355:INFO:ClientHandler.cpp(846)] Changing view to: main.news
[0418/213404:INFO:mainWindows.cpp(20)] Reopen event triggered!
[0418/213404:INFO:mainWindows.cpp(24)] Asking to focus browser window.
[0418/213404:INFO:ClientHandler.cpp(176)] Launcher is already open!
[0418/213410:INFO:ClientHandler.cpp(149)] Shutting down!
Same thing for me. When I click on the shortcut it won't open... I dug My JAVA is up to date and video card driver, too..
Same problem:
[0418/213352:INFO:LauncherAppBrowser.cpp(24)] Work dir is C:\Users\mike\AppData\Roaming\.minecraft
[0418/213352:INFO:ClientHandler.cpp(182)] Creating launcher window.
[0418/213353:INFO:LauncherAppRenderer.cpp(110)] Javascript bridge extended.
[0418/213355:INFO:ClientHandler.cpp(846)] Preferences / startup: Read preferences
[0418/213355:INFO:ClientHandler.cpp(846)] Preferences: Wrote preferences
[0418/213355:INFO:ClientHandler.cpp(846)] Configurations: Loading profiles
[0418/213355:INFO:ClientHandler.cpp(846)] Configurations: Loading settings
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Read authDB
[0418/213355:INFO:LocalVersionProvider.cpp(81)] Looking for installed versions in C:/Users\mike\AppData\Roaming\.minecraft\versions
[0418/213355:INFO:ClientHandler.cpp(846)] Updating server status
[0418/213355:INFO:GameController.cpp(216)] Reinstancing game callbacks...
[0418/213355:INFO:ClientHandler.cpp(846)] GameStarter: Previous instance(s) found
[0418/213355:INFO:ClientHandler.cpp(846)] Did not send startup event
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Validated token
[0418/213355:INFO:ClientHandler.cpp(846)] Preferences: Wrote preferences
[0418/213355:INFO:ClientHandler.cpp(846)] Session: Wrote authDB
[0418/213355:INFO:ClientHandler.cpp(846)] Changing view to: main.news
[0418/213404:INFO:mainWindows.cpp(20)] Reopen event triggered!
[0418/213404:INFO:mainWindows.cpp(24)] Asking to focus browser window.
[0418/213404:INFO:ClientHandler.cpp(176)] Launcher is already open!
[0418/213410:INFO:ClientHandler.cpp(149)] Shutting down!