pConnect problems

[eluser]-sek[/eluser]
I had a query fail several times after disabling persistent connections in the database config. Enabling pconnect apparently restored the query to function again. The only thing I can see from playing with this is that there may some interaction between parameterization and persistent connections. Some other queries that did not use parameters did not fail. Before I get too deep into this, I wonder if anyone has seen anything like this?

Thanks