Reply to suddenly lost control of my "transport" section while at a gig

I went to Traktor to start playing something and the "play" button on my S2 wouldn't work. All the faders worked, but play, cue, and jog wheels did nothing.

I could play a song in iTunes, but only the song that was playing. My mouse wouldn't work to select a new track.

Closing and re-starting didn't help either. I had to shut down my laptop before it would start working again.

Anyone else have this problem?