Window problems

Hey all, I recently noticed that my passenger side window goes down by itself, when i put it back up and went outside i was able to push the window down quite a significant amount, enough to stick my hand inside. Anyone know why this would happen? is it time for a new regulator?;
of course this would be bad because people can get into the car.
 
I would say that it probably needs a new regulator.

The regulators are not made very well if you ask me. They don't seem to be very durable or hold up well.

At least the don't cost much.