Hi Bruce,
I have had a similar problem. I changed something (I think it was in the generic page header, or the signon form) and validation update was not firing on the signon form. I would enter my userid/ p[assword and focus would immediately go to the userid. Debug messages showed the signon validation was not being called. I restored the last working app backup, recompiled, and still had the problem. IIRC, i deleted the signon procedure and recreated it and it worked. Happened again several days later. This time going to a backup app got it working again.
I know this is not much help, but I will try to recreate the problem on one of the examples in the next several days.
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