Alright, every time I've tried to start the client via the autohaven.jnlp as received from the 'Play Now' link, the splash starts, and starting out it was either so sluggish that it dragged my computer nearly into a freeze, tried to download an update that would not go at all, or, more recently, the splash starts and then nothing happens- the process just freezes.
This is the error report I got last time I tried
java.lang.NoClassDefFoundError: com/sun/gluegen/runtime/DynamicLookupHelper
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at javax.media.opengl.GLDrawableFactory.getFactory(GLDrawableFactory.java:106)
at javax.media.opengl.GLCanvas.chooseGraphicsConfiguration(GLCanvas.java:520)
at javax.media.opengl.GLCanvas.<init>(GLCanvas.java:131)
at javax.media.opengl.GLCanvas.<init>(GLCanvas.java:90)
at haven.HavenPanel.<init>(HavenPanel.java:63)
at haven.MainFrame.<init>(MainFrame.java:120)
at haven.MainFrame.main2(MainFrame.java:209)
at haven.MainFrame.access$100(MainFrame.java:34)
at haven.MainFrame$5.run(MainFrame.java:262)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.sun.gluegen.runtime.DynamicLookupHelper
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 36 more