Hey,
That app does unfortunatly not work on S3, and i don't have access to the HTC right now.
I did however connect the S3 to my computer, and useing the S3 toolkit/devkit, got the logcat file out.
My knowledge aint that good on phones unfortunatly, but i did find this part:
E/com.quest.qmx.mdm.DeviceInfo(30272): Register with MDM failed
W/SocketClient( 1891): write error (Broken pipe)
Did a log-reset, and started the qmx, and picked up the new log.
Hopefully its of more use to you than to me. hehe. 
//Eirik