Hey Catch86, I've had the same problem with my DW for months and the issue was solved last night.
Check the thermistor in the power supply case. Temporarily jump it with a fairly high-gauge wire. If the resets stop then you have a faulty thermistor.
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Failed_Thermistor
This solved my problem as my machine would reset easily during the first 30-minutes of power-up.