Hi Martin,
Thanks for getting involved in this. I understand your explanation of the problem. However, I can't help but feeling that this explanation is the equivalent of saying that the software is incompatible. I wouldn't be so critical if this were a minor inconvenience, however I think most musicians would say that having perfect time is not some added luxury feature, but a requirement. I also wouldn't be so critical if I was forewarned about this issue.
Thanks for your attention. I hope this gets resolved with haste.
As a P.S. to DP users: this issue can be alleviated (albeit painstakingly) by adding a MIDI time shift plugin to each MIDI track, and shifting the timing earlier by the correct number of samples. For those of you with hundreds of tracks... have fun with that!