I'm also unable to get SFX running from the driver station (but am able to run it from the command line). My command line is
Code:
DashboardCmdLine = ""java -jar C:\\Users\\Joe-XPS13-W7\\sunspotfrcsdk\\tools\\sfx\\sfx.jar""
I'm running Windows 7 64 bit with 64 bit java. I just updated java tonight, so I'm running 1.7.0_51