That's weird. Especially considering I can't see that draggable time stamp on the tiny line below the timer.
Try creating a new project first. Then try and create a pattern - anything, a drum beat, some hats, whatever. Place a pattern on the timeline starting at 0 and press play, see if it works.
If not, try holding your right mouse button and dragging across the black numbered time band at the top of the timeline to highlight an area in red and THEN press play to see if it only plays that selected area.
If you've downloaded any plugins recently that might be causing it to mess up, get rid of them.
If it's cracked... get a better crack. Or buy it. Either way cracked software has been known for it's bugs.
Hope this helps.
- Z
