i found the answer ty.
"The Now Time is not smooth during playback or scrolls out of view
If the Now Time does not update smoothly during playback, press the PAUSE (or BREAK) key on your keyboard to make sure you didn't inadvertently put SONAR in CPU conservation mode.
If the Now Marker scrolls out of view or off of the screen, press the SCROLL LOCK button on your keyboard so that SONAR follows the Now Marker."
still ty
CTStump, i found it before i saw your post. :)