I have a Genie garage door opener. It is roughly about 11 years old.
This past weekend I came home and my garage door was wide open. I
always confirm that it is down before I drive away. My neighbor's
garage door randomly went up the day before. Nobody else in the
neighborhood is having this problem. I don't think it is a frequency
problem because of the random times that they were both up.

Is it time for me to get a new transmitter? Any other ideas?