Problema muy raro con mi minecraft

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

Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to C:\Documents and Settings\Administrator\Application Data.minecraft\crash-reports\crash-2013-03-31_17.37.15-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 :frowning:

— BEGIN ERROR REPORT 1288554 --------
Full report at:
C:\Documents and Settings\Administrator\Application Data.minecraft\crash-reports\crash-2013-03-31_17.37.15-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 13-3-31 下午5:37

– System Details –
Details:
Minecraft Version: 1.5.1
Operating System: Windows XP (x86) version 5.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode, sharing), Oracle Corporation
Memory: 15840600 bytes (15 MB) / 49188864 bytes (46 MB) up to 518979584 bytes (494 MB)
JVM Flags: 1 total; -Xmx512M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 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 Radeon HD 3200 Graphics/609M VRAM/TitaniumGL/2 THREADs/3D GRAPHICS ACCELERATION/4 TMUs GL version 1.4 v2009-2012/3/08 ©Kovacs Gergo, titaniumgl.tk
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ERROR NullPointerException: null

java.lang.NullPointerException
at bki.<init>(SourceFile:22)
at net.minecraft.client.Minecraft.a(SourceFile:262)
at avv.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:507)
at java.lang.Thread.run(Unknown Source)
— END ERROR REPORT 26066638 ----------

Aparte he intendado poner force udape cuando termian el force me sale crashed voy a la carpeta .minecraft esta en blanco cuando pego el carpeta BIN me sale un error cuando intento eliminar el .minecraf no se puede y porseacaso el minecraft no esta abierto ayuda porfavor :frowning:

Si tienes el minecraft sp, ve a %appdata% borra la carpeta de .minecraft y luego le das al minecraft sp y force update y se instalaran las cosas, eso es lo que yo se.
Saludos, espero haber ayudado.

haz copia limpia.