SERVO Brick stop recognizing my two bricklets

[paulse]

Hi,

 

I had my Servo Brick working and I was using the Distance IR and Load Cell Bricklets with it.  It was working fine (interfacing through matlab and was reading out value in real-time) then it suddenly stopped working.  By stopped working I mean only the Servo Brick registers when nothing is connected to the bricklet ports.  As soon as I connect to the bricklet ports and reset the Servo Brick, nothing is registered in the "add device" section of Brick Viewer.

 

Any suggestions to get my Birck working again?  I'm using a 5.2 V 0.5A DC power supply and I can operate a small motor with the servo.  May it have to do with the erase button?  did I erase some of the on device firmware?