Rewire, X2 and Sibelius 7

I have X2 and Sibelius 7.  Both are 64 bit.

I can see Sib as a rewire in Sonar but when I insert it as a rewire device, Sib does not open.  Looks like the connection is not properly made.

Anyone know how I can get this to work?

BTW I have tried X1 and have the same problem.