I’ve had similar issues since upgrading to EZdrummer 2, Win7 64bit, Cubase 7.5 64bit and EZdrummer 2 64bit. The only way I could get EZ2 to work inside Cubase was to reinstall EZ2 as 32bit. From this thread I’m a little unclear as to whether we should see an EZ2 64bit VST plugin, can you clarify please?