Hopper: java.lang.ArithmeticException: / by zero

java.lang.ArithmeticException: / by zero
	at bpj.a(SourceFile:95)

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 10/11/13 1:39 PM
Description: Generating mipmaps for frame

java.lang.ArithmeticException: / by zero
	at bpj.a(SourceFile:95)
	at bpe.d(SourceFile:247)
	at bpa.b(SourceFile:165)
	at bpa.a(SourceFile:90)
	at bpg.a(SourceFile:72)
	at bpg.a(SourceFile:61)
	at bpg.a(SourceFile:52)
	at ayp.X(SourceFile:457)
	at ayp.e(SourceFile:691)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at bpj.a(SourceFile:95)

-- Frame being iterated --
Details:
	Frame index: 0
	Frame sizes: 196, null, null, null, null
Stacktrace:
	at bpe.d(SourceFile:247)

-- Sprite being mipmapped --
Details:
	Sprite name: cake_top
	Sprite size: 14 x 14
	Sprite frames: 1 frames
	Mipmap levels: 4
Stacktrace:
	at bpa.b(SourceFile:165)
	at bpa.a(SourceFile:90)

-- Resource location being registered --
Details:
	Resource location: minecraft:textures/atlas/blocks.png
	Texture object class: bpa
Stacktrace:
	at bpg.a(SourceFile:72)
	at bpg.a(SourceFile:61)
	at bpg.a(SourceFile:52)
	at ayp.X(SourceFile:457)

-- Initialization --
Details:
Stacktrace:
	at ayp.e(SourceFile:691)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w41b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 27551184 bytes (26 MB) / 74792960 bytes (71 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 13w41b
	LWJGL: 2.9.0
	OpenGL: Quadro NVS 135M/PCI/SSE2 GL version 2.1.2, NVIDIA Corporation
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [monkeycraft]
	Current Language: Canadian English (CA)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
	Anisotropic Filtering: Off (1)