First note gets cut off

I've been a Pianoteq user for several years and fairly recently a strange problem has arisen. When a note occurs at the beginning of a measure in a sequence, and playback starts on that measure, that note gets cut off abruptly.  Any notes that follow play back normally.  To compensate, I need to begin playback a beat earlier.  I experimented by placing the first note later in the measure to see how far from the start of playback it need to go before playing normally.  The result was .07 seconds later.  Not a practical solution when the note has to be on the first beat.

Anyone else have this issue?

I'm using version 6.6.0 with Digital Performer 10.

Thanks.

Richard