I get this error a ton lately, with every client. That includes the Vanilla one. Sometimes, very, very, very, 
VERY rarely, it works. But that's like finding a gold bar in your mail box. Java is up-to-date, tried deleting this mysterious gluegen-rt.dll and redownloading it, still ain't working. ****'s frustrating.
java.lang.UnsatisfiedLinkError: C:\Users\User\AppData\Local\Temp\jogamp_0000\file_cache\jln1190561948271014474\jln2045824809722208825\gluegen-rt.dll: Access is denied
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary1(Unknown Source)
	at java.lang.ClassLoader.loadLibrary0(Unknown Source)
	at java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.lang.Runtime.load0(Unknown Source)
	at java.lang.System.load(Unknown Source)
	at com.jogamp.common.jvm.JNILibLoaderBase.loadLibraryInternal(JNILibLoaderBase.java:530)
	at com.jogamp.common.jvm.JNILibLoaderBase.access$000(JNILibLoaderBase.java:64)
	at com.jogamp.common.jvm.JNILibLoaderBase$DefaultAction.loadLibrary(JNILibLoaderBase.java:96)
	at com.jogamp.common.jvm.JNILibLoaderBase.loadLibrary(JNILibLoaderBase.java:414)
	at com.jogamp.common.os.DynamicLibraryBundle$GlueJNILibLoader.loadLibrary(DynamicLibraryBundle.java:388)
	at com.jogamp.common.os.Platform$1.run(Platform.java:203)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.jogamp.common.os.Platform.<clinit>(Platform.java:173)
	at javax.media.opengl.GLProfile.<clinit>(GLProfile.java:82)
	at haven.HavenPanel.stdcaps(HavenPanel.java:58)
	at haven.HavenPanel.<init>(HavenPanel.java:71)
	at haven.HavenPanel.<init>(HavenPanel.java:81)
	at haven.MainFrame.<init>(MainFrame.java:183)
	at haven.MainFrame.main2(MainFrame.java:371)
	at haven.MainFrame.access$100(MainFrame.java:35)
	at haven.MainFrame$7.run(MainFrame.java:425)
	at java.lang.Thread.run(Unknown Source)