>When I run my test today, I sent 600 hits in two minutes. I sent the test against a production page which is one of the busiest of the site. That page processes about 25 SQL commands. Within that timeframe, I got 16 errors. All the errors reported were all related to that problem. But, on all those errors, the HTML code for the page was returned ok.
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You might think about checking another angle: from the above you have approx. 0.1% error on all SQL commands (16 errors on 600 * 25 SQL), so the probability of having the SQL error out again is at every thousandth error. Running the test for an hour should give you about 500 errors or a 50% chance of having the same SQL fail twice in a row. If you run your test for a few days on a dedicated machine you could make sure if the error always occured on the first SQL or if it occurs in the same percentage of "first errors". (Hypothesis: some trouble while creating/initializing).

regards

thomas