Can't get past Mojang Screen [MAC]

[JoshVezzoli]

Title: Can't get past Mojang Screen [MAC]

Version: 3.1.3

OS: Mac, OSX Mountain Lion Version 10.8.4

Java Version: Java 7 Update 25

Description of Problem:

Keep getting the below error message every time I try and load Tekkit Classic

Error Messages:

--- BEGIN ERROR REPORT cb33665e --------

Generated 9/1/13 7:09 PM

Minecraft: Minecraft 1.2.5

OS: Mac OS X (x86_64) version 10.8.4

Java: 1.6.0_51, Apple Inc.

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

LWJGL: 2.4.2

OpenGL: Intel HD Graphics 4000 OpenGL Engine version 2.1 INTEL-8.12.47, Intel Inc.

org.lwjgl.opengl.OpenGLException: Invalid framebuffer operation (1286)

at org.lwjgl.opengl.Util.checkGLError(Util.java:56)

at org.lwjgl.opengl.Display.swapBuffers(Display.java:645)

at net.minecraft.client.Minecraft.v(Minecraft.java:509)

at net.minecraft.client.Minecraft.a(Minecraft.java:403)

at net.minecraft.client.Minecraft.run(Minecraft.java:738)

at java.lang.Thread.run(Thread.java:680)

--- END ERROR REPORT 1a4e2717 ----------

Error Log: