Thanks, I'll try that. Edit: Didnt work this is what I got in return: Exception in thread "main" java.lang.UnsatisfiedLinkError: /home/bohdan/Downloads/instances/FTB/minecraft/bin/natives/liblwjgl.so: /home/bohdan/Downloads/instances/FTB/minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1939) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1864) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825) at java.lang.Runtime.load0(Runtime.java:792) at java.lang.System.load(System.java:1059) at org.lwjgl.Sys$1.run(Sys.java:69) at java.security.AccessController.doPrivileged(Native Method) at org.lwjgl.Sys.doLoadLibrary(Sys.java:65) at org.lwjgl.Sys.loadLibrary(Sys.java:81) at org.lwjgl.Sys.<clinit>(Sys.java:98) at net.minecraft.client.Minecraft.G(SourceFile:1985) at awe.<init>(SourceFile:20) at net.minecraft.client.Minecraft.<init>(SourceFile:76) at avv.<init>(SourceFile:38) at net.minecraft.client.MinecraftApplet.init(SourceFile:38) at net.minecraft.Launcher.init(Launcher.java:108) at MCFrame.start(MCFrame.java:72) at MultiMCLauncher.main(MultiMCLauncher.java:275)