Data integrity checking w/ PHP & MySQL?

I've run into some problems on my high traffic site, bangable.com, with what appears to be data integrity in MySQL, and was wondering if there are any checks I can do in PHP to validate that the right information was updated. I have a ton of inserts/selects going on.. in little over a day the number of queries has reached 1 million. This is an amihotornot type site, what happens is the user votes on a picture, that rating/# of votes is updated in the DB, the persons IP thrown into a database, then moves onto the next picture.. I've gotten a few reports of people who have had like 600 votes then all of a sudden they drop to like 27 (or some other random #) or their score changes, or some combination of the 2. I've only had about half a dozen reported cases of this, and half a dozen in several million queries is pretty good, but it reflects badly on the integrity of the system and I need to correct that. Is there any way I can code in a check in PHP to see if it got updated correctly without inducing too much overhead? While searching around the net this morning for data integrity in MySQL, what I basically saw was the check needs to be coded in the programming language. If anyone has recommendations on how to do this, I would appreciate it. I don't want to switch over to another DB unless there's no solution, as I didn't use a db wrapper and changing all those database calls would really suck. Thanks, Chad Day When I speak german... I think german in my head... but like...Do skript kiddies see a w40l3 8uncha 1's and 0's and 3's and 4's and 7's in their h34d'5 w43n t43y R +a1k1n6 ? -- SirStanley