mySQL update causing Servoy slowness

I just updated mySQL servers from 4.1.2 to 5.0.18 running on standard Fedora 5 core (64 bit) install and now some areas of my Servoy application are VERY slow.

I updated to the latest mySQL jdbc driver and it id not resolve the issue. I rolled back to the old mySQL 4 server and the speed is back to being good.

Does anyone have any suggestions? gotchas? or had a similar experience when upgrading mySQL with Servoy???

When you look at your MySQL logs, is the problem that the queries are taking a long time to return, or is the problem in the communication with Servoy?