It turns out that I have been fighting just this problem with an older industrial computer [industrial automation stuff]. Due to my lack of familiarity with this particular processor, I couldn’t be sure if I had configuration problems or some other software induced problems. I just observed a couple of faults that cinch the problem. THANK GOD!!! This was starting to get nasty. I am sure Zantra and others can appreciate the frustration and potential cost [to me] of problems like this. Consulting work can get real ugly at times. It is so rare that a processor makes a genuine mistake, especially the stuff I work with, that it takes an act of congress to be sure that no other cause can be found. Industrial computers are very robust and the operating systems are rock solid. This is a very unusual event. Whewwww!