I've had some issues with VSTs in the past. I think if you are running 64 bit machine the VSTs have to be 32 bit I'm not sure this is the case with real Band, I was downloading VSTs for some Animation stuff like I clone5 pro. So the 32 bit thing may just be a Reallusion Issue. However, I'm having similar problems with the Studio 1 software in PreSonus AutoBox USB. The program does not want to activate any virtual plug-ins at all, even Real-Tracks from RealBand.