GA 3 with 64 bit Cubase 6 windows 7?

I have just purchased Groove Agent 3 and installed it on my Windows 7 64 bit laptop, which has Cubase 5.5.2 installed. I also found that midi data was not being recorded. I thought I may have missed something in the manual, but then I came across this thread.

Is there anyone that can confirm that these two software programs made by Steinberg are not compatible? Shouldn’t that be made clear on the package?