Support Request: Crashing on Startup [1.2.5]

1st Official Post

    Hi i have been trying to install IC2 and it keeps crashing on start up. I follow all the instructions i just wont work. Here is the error;


    Mods loaded: 2
    ModLoader 1.2.5
    mod_MinecraftForge 3.1.3.107


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


    Minecraft has stopped running because it encountered a problem.





    --- BEGIN ERROR REPORT 6f1a8a2f --------
    Generated 22/05/12 18:17


    Minecraft: Minecraft 1.2.5
    OS: Windows 7 (amd64) version 6.1
    Java: 1.7.0_03, Oracle Corporation
    VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    LWJGL: 2.4.2
    OpenGL: AMD Radeon HD 6800 Series version 4.2.11631 Compatibility Profile Context, ATI Technologies Inc.


    java.io.EOFException: Unexpected end of ZLIB input stream
    at java.util.zip.InflaterInputStream.fill(Unknown Source)
    at java.util.zip.InflaterInputStream.read(Unknown Source)
    at java.util.zip.ZipInputStream.read(Unknown Source)
    at java.util.zip.ZipInputStream.closeEntry(Unknown Source)
    at java.util.zip.ZipInputStream.getNextEntry(Unknown Source)
    at ModLoader.readFromModFolder(ModLoader.java:1270)
    at ModLoader.init(ModLoader.java:887)
    at ModLoader.addAllRenderers(ModLoader.java:189)
    at ahu.<init>(RenderManager.java:86)
    at ahu.<clinit>(RenderManager.java:14)
    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 d91985e8 ----------


    Hope you can help me, Thanks

    It still won't work
    I have re downloaded the jar several times and i keep using clean minecraft.jar's. I have no idea what to do next.
    If you could help me further that would be appreciated, Thanks

    I'm quite certain that something is wrong with forge, not with IC2, as the error report doesn't even show IC2 in the mods loaded.
    Are you sure you are installing forge on minecraft.jar?
    Edit: also what he said. You don't have to actually extract anything when installing.