I installed IC2 and when I started up minecraft, it told me I was using the same ID's for multiple blocks so I changed that, and now it gives me this:
Mods loaded: 6
ModLoader 1.2.5
mod_MinecraftForge 3.1.2.94
mod_Biosphere 1.2.5
mod_Floodgate 1.2.5
mod_IC2 v1.95
mod_Shelf 1.2.5
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.
--- BEGIN ERROR REPORT b82a403e --------
Generated 5/11/12 10:03 AM
Minecraft: Minecraft 1.2.5
OS: Windows XP (x86) version 5.1
Java: 1.6.0_32, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: GeForce 7300 LE/PCI/SSE2 version 2.0.1, NVIDIA Corporation
java.lang.ArrayIndexOutOfBoundsException: 2453
at ModLoader.initStats(ModLoader.java:926)
at ModLoader.init(ModLoader.java:910)
at ModLoader.addAllRenderers(ModLoader.java:189)
at ahu.<init>(ahu.java:77)
at ahu.<clinit>(ahu.java:8)
at net.minecraft.client.Minecraft.a(Minecraft.java:394)
at net.minecraft.client.Minecraft.run(Minecraft.java:732)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT bb9fa8de ----------
I have absolutely no experience with Java so all of that means nothing to me.... Please help!