Inventory crash

Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Unexpected error

A full error report has been saved to C:\Users\xristos\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-14_20.18.41-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT d4b601bb --------
Full report at:
C:\Users\xristos\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-14_20.18.41-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 14/3/2013 8:18 μμ

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bdp['kboy'/8019, l='MpServer', x=-518,50, y=6,41, z=-149,50]]
	Chunk stats: MultiplayerChunkCache: 190
	Level seed: 0
	Level generator: ID 01 - flat, ver 0. Features enabled: false
	Level generator options: 
	Level spawn location: World: (-516,4,-147), Chunk: (at 12,0,13 in -33,-10; contains blocks -528,0,-160 to -513,255,-145), Region: (-2,-1; contains chunks -64,-32 to -33,-1, blocks -1024,0,-512 to -513,255,-1)
	Level time: 42 game time, 42 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
	Forced entities: 1 total; [bdp['kboy'/8019, l='MpServer', x=-518,50, y=6,41, z=-149,50]]
	Retry entities: 0 total; []
Stacktrace:
	at bdm.a(SourceFile:282)
	at net.minecraft.client.Minecraft.b(SourceFile:1879)
	at net.minecraft.client.Minecraft.run(SourceFile:538)
	at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
	Minecraft Version: 1.5
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_11, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 348827688 bytes (332 MB) / 619896832 bytes (591 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 21635 (1211560 bytes; 1 MB) allocated, 2 (112 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	LWJGL: 2.4.2
	OpenGL: ATI Mobility Radeon HD 4330           GL version 2.1.8918, ATI Technologies Inc.
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Texture Pack: Default
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 158 (8848 bytes; 0 MB) allocated, 13 (728 bytes; 0 MB) used

java.lang.VerifyError: (class: aza, method: A_ signature: ()V) Incompatible argument to function
	at net.minecraft.client.Minecraft.l(SourceFile:1264)
	at net.minecraft.client.Minecraft.K(SourceFile:572)
	at net.minecraft.client.Minecraft.run(SourceFile:524)
	at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 25ce0f99 ----------