Newbie's computer

  Hi guys I'm a newbie at this forge thing, but I wanted to get over my crash report    I couldn't find any other source so you guys will have to do!  When I installed a mod called ExtraBiomesXL, I couldn't get it to work in any way!  I'm so anxious for my first mod! :'(  Can you help me?  Here's the crash report:

Time: 1/30/15 4:55 PM

Description: Unexpected error

java.lang.IndexOutOfBoundsException

at java.nio.Buffer.checkIndex(Buffer.java:512)

at java.nio.DirectIntBufferU.get(DirectIntBufferU.java:248)

at net.minecraft.client.renderer.RenderGlobal.func_72712_a(RenderGlobal.java:350)

at net.minecraft.client.renderer.RenderGlobal.func_72732_a(RenderGlobal.java:294)

at net.minecraft.client.Minecraft.func_71353_a(Minecraft.java:2205)

at net.minecraft.client.Minecraft.func_71403_a(Minecraft.java:2135)

at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:239)

at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)

at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)

at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)

at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:2050)

at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)

at net.minecraft.client.main.Main.main(SourceFile:148)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

-- Head --

Stacktrace:

at java.nio.Buffer.checkIndex(Buffer.java:512)

at java.nio.DirectIntBufferU.get(DirectIntBufferU.java:248)

at net.minecraft.client.renderer.RenderGlobal.func_72712_a(RenderGlobal.java:350)

at net.minecraft.client.renderer.RenderGlobal.func_72732_a(RenderGlobal.java:294)

at net.minecraft.client.Minecraft.func_71353_a(Minecraft.java:2205)

at net.minecraft.client.Minecraft.func_71403_a(Minecraft.java:2135)

at net.minecraft.client.network.NetHandlerPlayClient.func_147282_a(NetHandlerPlayClient.java:239)

at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:70)

at net.minecraft.network.play.server.S01PacketJoinGame.func_148833_a(SourceFile:13)

at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)

-- Affected level --

Details:

Level name: MpServer

All players: 0 total; []

Chunk stats: MultiplayerChunkCache: 0, 0

Level seed: 0

Level generator: ID 00 - default, ver 1. Features enabled: false

Level generator options:

Level spawn location: World: (8,64,, Chunk: (at 8,4,8 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)

Level time: 0 game time, 0 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: creative (ID 1). Hardcore: false. Cheats: false

Forced entities: 0 total; []

Retry entities: 0 total; []

Server brand: ~~ERROR~~ NullPointerException: null

Server type: Integrated singleplayer server

Stacktrace:

at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373)

at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2433)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:916)

at net.minecraft.client.main.Main.main(SourceFile:148)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)

at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --

Details:

Minecraft Version: 1.7.10

Operating System: Mac OS X (x86_64) version 10.6.8

Java Version: 1.6.0_65, Apple Inc.

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Apple Inc.

Memory: 106819432 bytes (101 MB) / 355287040 bytes (338 MB) up to 1060372480 bytes (1011 MB)

JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95

FML: MCP v9.05 FML v7.10.85.1235 Minecraft Forge 10.13.2.1235 4 mods loaded, 4 mods active

mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML{7.10.85.1235} [Forge Mod Loader] (forge-1.7.10-10.13.2.1235.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge{10.13.2.1235} [Minecraft Forge] (forge-1.7.10-10.13.2.1235.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

ExtrabiomesXL{3.16.RC2} [ExtrabiomesXL] (ExtrabiomesXL-universal-1.7.10-3.16.RC2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Launched Version: 1.7.10-Forge10.13.2.1235

LWJGL: 2.9.1

OpenGL: NVIDIA GeForce 9400M OpenGL Engine GL version 2.1 NVIDIA-1.6.36, NVIDIA Corporation

GL Caps: Using GL 1.3 multitexturing.

Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.

Anisotropic filtering is supported and maximum anisotropy is 16.

Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'

Type: Client (map_client.txt)

Resource Packs: []

Current Language: English (US)

Profiler Position: N/A (disabled)

Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Anisotropic Filtering: Off (1)

help me! jk im ok