eltica

i have had a similar problem and i always get this screen : 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:\Users\owner\Desktop\minesworn mod pack\crash-reports\crash-2013-05-28_17.06.33-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 b61863de -------- Full report at: C:\Users\owner\Desktop\minesworn mod pack\crash-reports\crash-2013-05-28_17.06.33-client.txt Please show that file to Mojang, NOT just this screen! Generated 5/28/13 5:06 PM -- System Details -- Details: Minecraft Version: 1.5.2 Operating System: Windows 7 (x86) version 6.1 Java Version: 1.7.0_09, Oracle Corporation Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation Memory: 39314872 bytes (37 MB) / 139968512 bytes (133 MB) up to 518979584 bytes (494 MB) JVM Flags: 2 total; -Xmx512m -XX:MaxPermSize=128m AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: FML and Forge are installed IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: LWJGL: 2.9.0 OpenGL: ATI Mobility Radeon HD 4200 Series GL version 3.3.11161 Compatibility Profile Context, ATI Technologies Inc. Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Texture Pack: Default Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null org.lwjgl.opengl.OpenGLException: Invalid value (1281) at org.lwjgl.opengl.Util.checkGLError(Util.java:59) at org.lwjgl.opengl.DrawableGL.checkGLError(DrawableGL.java:82) at org.lwjgl.opengl.Display.swapBuffers(Display.java:617) at net.minecraft.client.Minecraft.func_71357_I(Minecraft.java:518) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:407) at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56) at net.minecraft.client.Minecraft.run(Minecraft.java:733) at java.lang.Thread.run(Unknown Source) --- END ERROR REPORT b38b14be ---------- and then the crash report says : ---- Minecraft Crash Report ---- // Don't be sad, have a hug! <3 Time: 5/28/13 5:06 PM Description: Failed to start game org.lwjgl.opengl.OpenGLException: Invalid value (1281) at org.lwjgl.opengl.Util.checkGLError(Util.java:59) at org.lwjgl.opengl.DrawableGL.checkGLError(DrawableGL.java:82) at org.lwjgl.opengl.Display.swapBuffers(Display.java:617) at net.minecraft.client.Minecraft.func_71357_I(Minecraft.java:518) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:407) at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56) at net.minecraft.client.Minecraft.run(Minecraft.java:733) at java.lang.Thread.run(Unknown Source) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.5.2 Operating System: Windows 7 (x86) version 6.1 Java Version: 1.7.0_09, Oracle Corporation Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation Memory: 39314872 bytes (37 MB) / 139968512 bytes (133 MB) up to 518979584 bytes (494 MB) JVM Flags: 2 total; -Xmx512m -XX:MaxPermSize=128m AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: FML and Forge are installed IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: LWJGL: 2.9.0 OpenGL: ATI Mobility Radeon HD 4200 Series GL version 3.3.11161 Compatibility Profile Context, ATI Technologies Inc. Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Texture Pack: Default Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null i have only tried this on one custom modpack but i have never gotten onto vanilla i have only had minecraft crash does anyone know how to fix this?