I have issues with V-vocal crashing occasionally when I am using X1 64 bit. It only occurs when initially creating the V-vocal piece. It seems rock solid in 32 bit. It doesn't happen all the time. One tip: I found out, quite by accident, that there is a relationship between the crashes I observe and use of track folders. When the track is in a track folder, there is much greater chance of a crash. So what i do is move any v-vocal tracks out of a track folder, create the v-vocal, and if desired, move it back into the folder. The other work around is to pull teh project into X1 32, create the v-vocal click, save and exit out. Then load it n sonar x1 64. Oh yes, frequent saves are a must and setting X1 to allow version saving. I have tested this enough times to be absolutely sure of the relationship between having the track in a track folder when I create the v-vocal and the crash. I am on Win 7 Ultimate 16 Gig Ram. I wish they would fix these annoyances in v-vocal (64 bit). When I get the "white screen", and especially when I loose work, its a huge downer. Rick