AterSoul

ok, thank you for your help!

The bad thing is my computer is so shit, It can't run anything above 1.7.2. My graphics card is to out of date :'(

I know Ive installed forge right, It worked fine in 1.6.4, but now in 1.7.2 I get this crash log and Minecraft dosen't start up [13:35:44] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker [13:35:44] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker [13:35:44] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker [13:35:44] [main/INFO] [FML]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading [13:35:44] [main/INFO] [FML]: Java is Java HotSpot Client VM, version 1.8.0_25, running on Windows 7:x86:6.1, installed at C:\Program Files\Minecraft\runtime\jre-x32\1.8.0_25 [13:35:44] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker [13:35:44] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker [13:35:44] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker [13:35:44] [main/ERROR] [LaunchWrapper]: Unable to launch java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) ~[?:1.8.0_25] at java.util.ArrayList$Itr.remove(ArrayList.java:865) ~[?:1.8.0_25] at net.minecraft.launchwrapper.Launch.launch(Launch.java:117) [launchwrapper-1.9.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?] Java HotSpot Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release