The starting up of minecraft worked.
I tried to connect to a world, loading terrain and then it crashed.
It's only when I load worlds I previously created; new ones are playable.
Environment
OS: Windows 7 (ver 6.1, arch x86)
Java: 1.7.0_55 (by Oracle Corporation)
Launcher: Minecraft Launcher 1.4.4 (bootstrap 5)
Minecraft: 14w28a (updated Wed Jul 09 17:42:36 CEST 2014)
Incomplete without a crash report from (
[minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.