Noel Borthwick [Cakewalk
]
Thats pretty strange. Have you tried resetting your audio configuration to defaults?
I suggest that you call support since can help you troubleshoot it. Its likely to be a configuration issue.
Thanks for chiming in, Noel. Not sure whom you were responding to, but you seem to be addressing my issues as well. It's very possible you are right, but I've checked all my configurations--I actually write them all down--and they're the same for X2 and X2a. I have an unsubstantiated suspicion that the update optimized things for Win 8, but introduced performance issues for Win 7. Again, that is pure speculation on my part. I could be totally wrong, but hope others with Win 7 64 will report their experiences.
Not sure when to call support over the holidays, but I have to keep working every day including Christmas, so I've rolled back to X2.