Put the summary of the bug you're having here
What I expected to happen was...:
Being able to play the game
What actually happened was...:
Launcher crashes. Seems caused by java
Steps to Reproduce:
1. Open launcher
2. Hit play button
3. Wait for launcher to crash as it always does
Your Java version is ancient! Please update your Java to the latest version (1.7.0_45): http://www.java.com/en/download/.
When using a 32-bit browser on a 64-bit operating system the automatic version detection will only show the 32-bit version of Java, the 64-bit version needs to be downloaded manually: http://www.java.com/en/download/manual.jsp.