Just an update, when I said that something might have been overlooked in the engineering process, I might have been right on track. On the 26th Toshiba released a new firmware version for the 5xxx series IPT's and that was what was recommended to me by them as a solution. Since then all of my IPT's have been upgraded and no problems as of yet. That remains to be seen though since the problem was random and could not be readily duplicated in the first place.

Anyway, if any of you have any 5xxx series IPT's out there, better get the firmware upgraded.