Build 9316 gives me a "Could not find the main class" error when I try running it, both from the GUI and the command line. I'm 99% sure it's not a Java configuration error; I've reinstalled Java both 32- and 64-bit, checked my system variables, everything checks out. Build 9315 runs properly on my system, so that made me concerned it was an error with that build in particular. I did figure if it were, it would've been checked before release, but still, I figured best to submit a bug report just in case. Sorry if it turns out this is just a screw-up on my end.