I've just started using the netbeanse IDE and can't for the life of me figure out how to disable those stupid "pop up while you're coding" things. Anybody know how to get rid of them?

example: i might be typing blah.substring( THEN BAM! a big window pops up on the screen, grabing my attention just long enough to make me forget what I was typing, also blocking half of my screen so I have to move the cursor and select some other section of code to see what i need to see to remember what I was typing. It's a deadly loop!