midiburt on superior drummer 2 not showing up in Reason 10

Hi,
I can't get SD2 in Reason. I'm on windows 7 pro 64 bit and I have SD version 2.2.1 installed.
SD works just fine in Toontrack solo, but I can't find it in Reason.
I added the VST folder C:\Program Files (x86)\VstPlugins to Reason (the preferences >Advanced).
Does anybody got a solution for this?
Greetings Bart