[spsteam1512]

WE currently have two Vex controllers that have problems that we do not know how to fix.

Depending on their moods, we are able to download programs onto them sometimes. The programs never actually work/make the robots do what we have programmed them to do. They just sit there.
Othertimes we just have lights flashing and other random things.
Does anyone have any ideas as to what has happened to our Vex controllers!??
We would greatly appreciate the help.

Sincerely,
Team 1512