[rswsmay]

All the above questions/suggestions are valid ones. Since this is happening to two of your controllers I am more likely to ask the questions:

1. Is your battery fully charged?
2. Do you have a while loop in your program?
3. If using EasyC, do are you using version 2.8.x.x?
4. Are you using version 7 of the master code?
5. Do you have some autonomous code written? If yes and us used EasyC, use a jumper in interrupt 7 to disable your autonomous code and see if the operator portion works properly.
6. If all else fails, reload the default code or the online code and check the response of all the motor outputs.