Q:

SQL Navigator prompts every time I'm closing it

I'm using SQL Navigator that is connected to the Oracle server of our company.  
alt text http://i34.tinypic.com/3583wxf.jpg
Whenever I run a query or two and exit the program, it prompts the following confirmation window:
alt text http://i37.tinypic.com/x60cgw.jpg
I don't think that I have pending transactions.  To close the program, I have to click on Yes or No and this is annoying.  I also tried that: I opened the program and closed it without running any queries.  This way it didn't prompt. 
How can I suppress this message? 

A:

Are you calling any functions in your queries?  Maybe they have sideeffects (inserting / updating data).