I'm having a bizarre issue using my Wacom Intuos 4 tablet with Audition CS6. When I drag a clip around with my pen in a multitrack project, if I drag too slowly, the cursor keeps moving but the clip stops moving altogether. If I speed up, it immediately jumps to wherever the cursor is once it's moving fast enough.
I've had this problem on a couple of different computers. It isn't happening in Audition CS5.5 (still installed), or if I use a mouse in CS6. I've updated both Audition and the Wacom drivers.