help: SFX+ and Cubase6 - won't work, why?

Searched the threads and didn’t see anything on this, makes me think it’s something easy that I’m overlooking.

Downloaded and installed SFX+ today, so I have the latest version. The problem is that it locks up!
I am running the latest version of Cubase 6 (64-bit) on a quad core with 8M RAM and Win7 (64-bit).
Has anyone else had problems with this?, or, does anyone have any suggestions?