Crash report

---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 9/6/12 1:07 AM
Description: Unexpected error

java.lang.IllegalArgumentException: input == null!
	at javax.imageio.ImageIO.read(Unknown Source)
	at avf.a(RenderEngine.java:1078)
	at avf.b(RenderEngine.java:1009)
	at aym.a(SourceFile:146)
	at app.a(SourceFile:176)
	at ayl.a(SourceFile:106)
	at auw.b(EntityRenderer.java:1088)
	at net.minecraft.client.Minecraft.J(SourceFile:607)
	at net.minecraft.client.Minecraft.run(SourceFile:535)
	at java.lang.Thread.run(Unknown Source)

Relevant Details:
- Minecraft Version: 1.3.2
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.7.0_04, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 389528512 bytes (371 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- LWJGL: 2.4.2
- OpenGL: Intel(R) HD Graphics Family GL version 3.0.0 - Build 8.15.10.2342, Intel
- Is Modded: Very likely
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)