I am unable to launch EAP 6981. To see the error, I launched from the command line:
Using JVMTI (1.6.0_01-b06;Sun Microsystems Inc.;mixed mode, sharing;Windows;32 bit JVM)
Error occurred during initialization of VM
java/lang/ClassNotFoundException: error in opening JAR file ..\lib\boot.jar
But the same failure behavior (splash screen briefly followed by app exit) happens with the desktop link
The only thing about my box which makes me think of this problem is that I have JDK/JRE1.6.0_01 installed and none other, but IDEA comes with its own bundled 1.5.0 JRE and this was not a problem with past EAP releases.