This was my thinking also, that one or more elements are undefined. However, even if that affects one pass, wouldn't the whole thing be cleared up in the next iteration? That is, shouldn't @times be effectively redefined for the next host? I can't figure out why every successive pass is screwed up in this way.

Since I can't force the problem, I have to wait for it to occur, which may be minutes or hours. I'd like to sprinkle some substantive t-shooting statements in here, but I can't figure out what will capture useful info. All suggestions welcome!

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