Sounds like you may have a backround program called a 'trainer' running. Normally Graal doesn't start if the 'trainer' is open, however, you can normally run a 'trainer' after graal has loaded. My advice would be to find this 'trainer' and push the X button.
Anyway real advice: It's most likely a problem between the 'pause' times in the script. Try un-installing and re-downloading graal yet? If that doesn't work, look for that 'trainer'