Probleme java

bonjour sur mon pc fixe java se lance correctement mais sur l'ordi portable java a de erreur alors que j'ai téléchargé java sur le même site quand j'ai lancé mon launcheur sa donne sa:

Java model: 32 bits... =/
Recommended RAM allocation: 512M
RAM allocation: 512M

C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Users\Ice\AppData\Roaming\.ascentia\natives -classpath C:\Users\Ice\AppData\Roaming\.ascentia\libraries\vecmath-1.3.1.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\trove4j-3.0.3.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\icu4j-core-mojang-51.2.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\jopt-simple-4.5.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\codecjorbis-20101023.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\codecwav-20101023.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\libraryjavasound-20101123.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\librarylwjglopenal-20100824.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\soundsystem-20120107.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\netty-all-4.0.10.Final.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\guava-15.0.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\commons-lang3-3.1.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\commons-io-2.4.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\jinput-2.0.5.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\jutils-1.0.0.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\gson-2.2.4.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\authlib-1.3.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\log4j-api-2.0-beta9.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\log4j-core-2.0-beta9.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\lwjgl-2.9.0.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\lwjgl_util-2.9.0.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\lwjgl-platform-2.9.0-natives-windows.jar;C:\Users\Ice\AppData\Roaming\.ascentia\libraries\jinput-platform-2.0.5-natives-windows.jar;C:\Users\Ice\AppData\Roaming\.ascentia\bin\minecraft.jar net.minecraft.client.main.Main
Exception in thread "main" java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at org.lwjgl.Sys$1.run(Sys.java:73)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
at org.lwjgl.Sys.loadLibrary(Sys.java:95)
at org.lwjgl.Sys.<clinit>(Sys.java:112)
at lO.hr(Unknown Source)
at mq.<init>(Unknown Source)
at lO.<init>(Unknown Source)
at net.minecraft.client.main.Main.main(Unknown Source)

merci de m'aider