keeps crashing

---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 09/07/13 18:26
Description: Unexpected error

java.lang.NullPointerException
	at bda.a(SourceFile:322)
	at bdv.l_(SourceFile:74)
	at bee.a(SourceFile:57)
	at ats.k(SourceFile:1402)
	at ats.S(SourceFile:663)
	at ats.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.6.2
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_15, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 168286968 bytes (160 MB) / 216989696 bytes (206 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 54139 (3031784 bytes; 2 MB) allocated, 54139 (3031784 bytes; 2 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Launched Version: 1.6.2
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 7640G GL version 4.2.11764 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

MInecraft keeps crashing on my computer

Steps to Reproduce:
occurs randomly