Client crash, just for me! What is wrong?

    Hello


    Im running a FTB Monster server with the addon of Gregtech. It works fine for my friend to play on the server but my client crash all the time.
    The server is hosted on Creeperhost.net


    This is the crash-report i get on my client
    http://pastebin.com/aKW22GU2


    I would love to get some help to solve this issue... Atleast learn what mods are conflicting etc.
    I am pretty much atm 100% crashing when using mystcraft books. But sometimes i cant login to the server, just instantly crash.


    What can i do here?
    Since it seems to work just fine for my friend, why aint it working for me?

    its forestry
    comes from the trees that are bigger than 1x1, especially if you have a tree farm going.
    nothing you can do about it if you want to use the tree farms

    Could you please explain more.


    Forestry that introduce 2x2 and bigger trees. Are they making my client crash?
    Why and is there really nothing to do about it than just disable the whole mod?


    And extra wierd since some on the server play with no problems.
    Why am i effected?

    when the trees are growing and trying to update the same block at the same time is when it crashes
    at least that is my theory.
    dunno why it is selective on who crashes
    I have the same issue and it only seems to pop up with the trees.
    and sometimes it won't happen for hours, sometimes 5 times within 30 min.
    It is very frustrating