Wavelab 6 Essential stops recording after 2:30 min.

Automatically, at almost the same elapsed time, everytime. Win7(64), SaffirePro24, Core i3 370, Seagate MomentusXT. Any clues? I am getting some latency spikes but what intrigues me is that it happens at the same time( 2min., 30 sec.) during the recording process.