mojby:
Your welcome and I'm glad that your problem is resolved.
However, the resolution of your problem actually that leaves a concern as to why the popping noises were occurring without the balloons messages being displayed.
What Windows are you running?
Do you have the Windows task bar hidden or is it normally present as the bottom of your screen, etc.?
Although you have apparently resolved your problem, I am attempting to find out if there is the possibly that a common problem exists in the display of TeaTimer's balloon that other users may run into.