Hello--Everytime our Option 11 switch looses power, some of the telephones (M3903) loose some of their functions. EX: The message key does not work, the display is missing DN numbers, some of the hot keys are blank. The problem is easily resolved by disconnecting the set form the wall and reconnecting it. I asked our vendor and he said that a SYSLOAD will fix the problem. Does that make sense, and if so, how do you perform a SYSLOAD? Thank you for any help provided.