Simple PHP Insert Page has Random Failure with MySQL

Hi all, I was working on a very simple php page to insert a new record into a mysql 'contacts' table. For testing, when I would refresh the page it would insert the new record. This worked fine - MOST of the time. Then, oddly randomly it would stop inserting records. I would click refresh several times and no new records got created. Then I might quit the browser or wait a while etc. then reload and it would work again for a while then stop again... one clue is the table looked like this with missing serial ID's: Rec 1 - fields... Rec 2 - fields... Rec 3 - fields... Rec 7 - fields... Rec 8 - fields... Rec 12 - fields... Rec 13 - fields... Rec 14 - fields... so it seems the page went to mysql and tried to insert a record but failed for some reason. Since it was static test data - it was all the same so it seems that can be ruled out. Also this is a very fast server with local mysql - so that should not be an issue. Any idea why it might be randomly failing to insert records? --- require_once('inc/db/class.db.php'); /* this for testing */ $_POST['id'] = 1; $_POST['first'] = 'test'; $_POST['last'] = 'test'; $_POST['cellphone'] = '1112223333'; $_POST['email'] = 'test@test.com'; $_POST['city'] = 'test'; $_POST['zip'] = '11111'; $insert = array( "id"=>$_POST['id'], "first"=>$_POST['first'], "last"=>$_POST['last'], "cellphone"=>$_POST['cellphone'], "email"=>$_POST['email'], "city"=>$_POST['city'] "zip"=>$_POST['zip'] ); $db->insert("contacts", $insert); $newpbid = $db->lastInsertId(); echo $newpbid; ----- -- Thanks, Dave - DealTek dealtek@gmail.com [db-16]