The textures desapear

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt) here.

Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 26/10/13 12:32
Description: Manually triggered debug crash

java.lang.Throwable
at azd.o(SourceFile:1383)
at azd.ad(SourceFile:753)
at azd.e(SourceFile:704)
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 biz.a(SourceFile:284)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bje['ElPeScAdOr321'/207, l='MpServer', x=-498,61, y=64,62, z=968,41]]
Chunk stats: MultiplayerChunkCache: 225, 225
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (-184,64,256), Chunk: (at 8,4,0 in -12,16; contains blocks -192,0,256 to -177,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 21990 game time, 4328 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: 45 total; [uq['Bat'/343, l='MpServer', x=-441,97, y=15,98, z=942,59], vw['item.tile.rail'/339, l='MpServer', x=-452,75, y=21,13, z=1029,72], vw['item.tile.rail'/338, l='MpServer', x=-459,13, y=23,13, z=1020,13], vy['entity.MinecartChest.name'/337, l='MpServer', x=-463,50, y=24,34, z=1021,50], vw['item.tile.mushroom'/336, l='MpServer', x=-451,31, y=27,13, z=991,56], uq['Bat'/351, l='MpServer', x=-431,25, y=19,10, z=957,50], vw['item.tile.torch'/348, l='MpServer', x=-445,56, y=21,13, z=1030,88], vb['Sheep'/287, l='MpServer', x=-563,50, y=63,00, z=897,53], vb['Sheep'/286, l='MpServer', x=-561,19, y=63,00, z=898,19], vb['Sheep'/285, l='MpServer', x=-562,53, y=63,00, z=899,41], ut['Cow'/284, l='MpServer', x=-563,50, y=63,00, z=896,22], vw['item.tile.flower1.dandelion'/326, l='MpServer', x=-469,13, y=22,13, z=984,88], uq['Bat'/327, l='MpServer', x=-480,71, y=15,67, z=1049,59], ve['Squid'/320, l='MpServer', x=-498,60, y=56,35, z=961,51], ve['Squid'/321, l='MpServer', x=-498,34, y=56,34, z=947,51], vw['item.tile.rail'/334, l='MpServer', x=-453,13, y=17,13, z=977,81], vw['item.tile.rail'/335, l='MpServer', x=-454,56, y=17,13, z=976,81], uq['Bat'/332, l='MpServer', x=-448,59, y=22,03, z=906,81], vw['item.tile.rail'/333, l='MpServer', x=-454,25, y=17,13, z=975,94], uq['Bat'/330, l='MpServer', x=-459,10, y=19,66, z=910,16], ve['Squid'/208, l='MpServer', x=-501,23, y=56,43, z=958,82], uq['Bat'/331, l='MpServer', x=-453,16, y=19,70, z=909,19], ut['Cow'/304, l='MpServer', x=-541,50, y=66,00, z=947,50], uq['Bat'/309, l='MpServer', x=-515,56, y=26,73, z=914,31], uq['Bat'/311, l='MpServer', x=-518,72, y=25,51, z=923,53], uq['Bat'/310, l='MpServer', x=-501,31, y=26,85, z=919,28], uq['Bat'/313, l='MpServer', x=-518,50, y=31,85, z=937,25], ve['Squid'/312, l='MpServer', x=-511,75, y=59,16, z=927,81], ve['Squid'/315, l='MpServer', x=-510,50, y=61,31, z=930,25], ve['Squid'/314, l='MpServer', x=-518,50, y=62,22, z=929,34], vw['item.item.seeds'/317, l='MpServer', x=-518,63, y=63,13, z=998,13], vw['item.item.seeds'/316, l='MpServer', x=-516,28, y=63,13, z=998,31], ve['Squid'/319, l='MpServer', x=-502,49, y=56,00, z=942,50], ve['Squid'/318, l='MpServer', x=-512,53, y=61,34, z=923,41], ut['Cow'/288, l='MpServer', x=-562,50, y=68,00, z=897,50], vb['Sheep'/289, l='MpServer', x=-562,50, y=64,00, z=900,97], ut['Cow'/290, l='MpServer', x=-572,47, y=64,00, z=896,31], vy['entity.MinecartChest.name'/291, l='MpServer', x=-562,50, y=35,50, z=1047,50], uq['Bat'/353, l='MpServer', x=-424,03, y=32,10, z=1011,91], ut['Cow'/296, l='MpServer', x=-559,50, y=63,00, z=899,50], bje['ElPeScAdOr321'/207, l='MpServer', x=-498,61, y=64,62, z=968,41], ut['Cow'/297, l='MpServer', x=-546,88, y=66,00, z=949,44], ut['Cow'/298, l='MpServer', x=-554,09, y=66,00, z=942,06], vw['item.item.seeds'/299, l='MpServer', x=-555,59, y=64,13, z=972,19], ut['Cow'/303, l='MpServer', x=-539,97, y=64,00, z=940,03]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at biz.a(SourceFile:284)
at azd.b(SourceFile:1951)
at azd.e(SourceFile:713)
at net.minecraft.client.main.Main.main(SourceFile:103)

– System Details –
Details:
Minecraft Version: 1.7.2
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: 75859352 bytes (72 MB) / 208244736 bytes (198 MB) up to 518979584 bytes (494 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
AABB Pool Size: 9831 (550536 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.7.2
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 6320 Graphics GL version 4.1.11013 Compatibility Profile Context, ATI Technologies Inc.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 7665 (429240 bytes; 0 MB) allocated, 18 (1008 bytes; 0 MB) used
Anisotropic Filtering: Off (1)