After I choose a server to play on it just opens a blank window I have tried waiting. In my cmd prompt box it has

Autodetecting java
Testing x86 folder
Checking C:\Program Files (x86)\Java\jre6 folder
Found java in C:\Program Files (x86)\Java\jre6 folder
Starting java from "C:\Program Files (x86)\Java\jre6\bin\java.exe"
username: :) stuff
sessionid: :) stuff
server: :) stuff
port: :) stuff
mppass: :) stuff
haspaid: false
Compass initialized
Exception in thread "Thread-3" 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:72)
        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 org.lwjgl.opengl.Display.<clinit>(Display.java:129)
        at com.mojang.minecraft.l.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

Can someone help me?
I have had to repost this cause people just seemed to ignore the other one.