Leopard, WebObjects 5.4, MySQL 5.0 deadlock Problem

Hello,

i have ported my apps to leopard and webobjects 5.4. now sometime  
when i create new record in my app i get a deadlock.
previous version on tiger and mysql 4.x works fine.

now my questions:

1) is there a known deadlock problem?
2) which mysql-connector should i use? 5.x or 3.x?
3) does anybody have a similar problem?


thanks

juergen