Demo crashes when unable to find 'name' of a bound mousebutton

- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 7/2/13 7:22 PM
Description: Rendering screen

java.lang.ArrayIndexOutOfBoundsException: -100
	at org.lwjgl.input.Keyboard.getKeyName(Keyboard.java:429)
	at auu.a(SourceFile:91)
	at bet.b(SourceFile:718)
	at atn.S(SourceFile:685)
	at atn.d(SourceFile:618)
	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:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at org.lwjgl.input.Keyboard.getKeyName(Keyboard.java:429)
	at auu.a(SourceFile:91)

-- Screen render details --
Details:
	Screen name: auu
	Mouse location: Scaled: (213, 119). Absolute: (427, 240)
	Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2

-- Affected level --
Details:
	Level name: MpServer
	All players: 1 total; [bcx['Player'/69, l='MpServer', x=215.50, y=68.62, z=-94.50]]
	Chunk stats: MultiplayerChunkCache: 140
	Level seed: 0
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (216,64,-92), Chunk: (at 8,4,4 in 13,-6; contains blocks 208,0,-96 to 223,255,-81), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
	Level time: 39 game time, 39 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: 58 total; [rl['Bat'/278, l='MpServer', x=296.50, y=19.64, z=-23.48], rz['Squid'/152, l='MpServer', x=154.35, y=60.13, z=-119.43], rv['Pig'/17, l='MpServer', x=190.50, y=70.00, z=-147.22], rv['Pig'/16, l='MpServer', x=191.78, y=70.00, z=-149.78], rv['Pig'/19, l='MpServer', x=189.50, y=70.00, z=-150.50], rv['Pig'/18, l='MpServer', x=190.19, y=70.00, z=-148.50], rv['Pig'/21, l='MpServer', x=235.78, y=70.00, z=-172.47], rv['Pig'/20, l='MpServer', x=232.50, y=70.00, z=-168.50], rv['Pig'/23, l='MpServer', x=233.34, y=70.00, z=-172.47], rz['Squid'/158, l='MpServer', x=176.60, y=52.61, z=-99.11], rv['Pig'/22, l='MpServer', x=234.31, y=70.00, z=-173.53], rz['Squid'/159, l='MpServer', x=178.45, y=52.89, z=-95.48], rw['Sheep'/25, l='MpServer', x=247.50, y=66.00, z=-172.50], rz['Squid'/145, l='MpServer', x=196.44, y=52.87, z=-54.79], rw['Sheep'/27, l='MpServer', x=247.30, y=66.00, z=-173.42], rz['Squid'/146, l='MpServer', x=197.02, y=53.84, z=-53.15], rw['Sheep'/26, l='MpServer', x=247.50, y=66.00, z=-172.50], rz['Squid'/147, l='MpServer', x=196.37, y=54.21, z=-50.24], rz['Squid'/148, l='MpServer', x=200.46, y=54.34, z=-47.34], rz['Squid'/149, l='MpServer', x=156.96, y=61.35, z=-121.65], rz['Squid'/150, l='MpServer', x=158.19, y=61.37, z=-122.24], rz['Squid'/151, l='MpServer', x=155.65, y=61.11, z=-119.04], rw['Sheep'/34, l='MpServer', x=270.50, y=68.00, z=-115.50], rz['Squid'/171, l='MpServer', x=155.52, y=54.75, z=-41.50], rw['Sheep'/35, l='MpServer', x=272.50, y=69.00, z=-118.50], rz['Squid'/170, l='MpServer', x=153.47, y=56.05, z=-43.46], rw['Sheep'/32, l='MpServer', x=269.50, y=68.00, z=-118.50], rw['Sheep'/33, l='MpServer', x=268.50, y=68.00, z=-115.50], rz['Squid'/175, l='MpServer', x=170.35, y=54.01, z=-61.97], rz['Squid'/174, l='MpServer', x=174.17, y=55.26, z=-62.56], rz['Squid'/173, l='MpServer', x=158.26, y=56.33, z=-43.49], rz['Squid'/172, l='MpServer', x=157.38, y=55.96, z=-43.21], rz['Squid'/163, l='MpServer', x=155.43, y=45.04, z=-86.16], rz['Squid'/162, l='MpServer', x=155.73, y=45.00, z=-86.34], rz['Squid'/161, l='MpServer', x=170.35, y=52.87, z=-105.69], rz['Squid'/160, l='MpServer', x=175.22, y=53.41, z=-93.57], rz['Squid'/165, l='MpServer', x=152.70, y=46.25, z=-82.86], rz['Squid'/164, l='MpServer', x=155.22, y=46.44, z=-84.29], rl['Bat'/290, l='MpServer', x=293.05, y=16.12, z=-30.82], rz['Squid'/176, l='MpServer', x=168.11, y=55.47, z=-63.12], rz['Squid'/177, l='MpServer', x=169.66, y=54.27, z=-61.88], rl['Bat'/79, l='MpServer', x=274.60, y=16.17, z=-17.19], rl['Bat'/73, l='MpServer', x=276.78, y=15.62, z=-19.92], bcx['Player'/69, l='MpServer', x=215.50, y=68.62, z=-94.50], rl['Bat'/222, l='MpServer', x=176.75, y=26.00, z=-68.55], rl['Bat'/83, l='MpServer', x=238.30, y=21.00, z=-40.53], rl['Bat'/98, l='MpServer', x=170.95, y=12.86, z=-143.45], rl['Bat'/97, l='MpServer', x=174.05, y=14.51, z=-147.50], rl['Bat'/381, l='MpServer', x=228.93, y=38.00, z=-56.93], rl['Bat'/380, l='MpServer', x=273.68, y=14.33, z=-16.94], rl['Bat'/376, l='MpServer', x=273.96, y=14.45, z=-13.13], rz['Squid'/127, l='MpServer', x=275.23, y=53.29, z=-45.92], rz['Squid'/126, l='MpServer', x=273.17, y=51.91, z=-50.00], rz['Squid'/125, l='MpServer', x=271.77, y=53.46, z=-51.71], rz['Squid'/124, l='MpServer', x=271.93, y=52.40, z=-48.03], rz['Squid'/123, l='MpServer', x=271.70, y=55.19, z=-55.66], rz['Squid'/122, l='MpServer', x=274.75, y=56.26, z=-58.29], rz['Squid'/120, l='MpServer', x=278.28, y=56.41, z=-58.30]]
	Retry entities: 0 total; []
Stacktrace:
	at bcu.a(SourceFile:284)
	at atn.b(SourceFile:1743)
	at atn.d(SourceFile:627)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.1
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 74339768 bytes (70 MB) / 258285568 bytes (246 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 18723 (1048488 bytes; 0 MB) allocated, 3590 (201040 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Launched Version: 1.6.1
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 7520G GL version 4.2.11774 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
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 14186 (794416 bytes; 0 MB) allocated, 14186 (794416 bytes; 0 MB) used