Close your GP client then edit your dex.ini in your GP install folder and change these values:
SQLLogODBCMessages=FALSE
SQLLogAllODBCMessages=FALSE
from FALSE to TRUE.
This will create a Dex.log file that will probably give you what you need.
You can delete this log at any time, this is good if you want to see what a particular transaction will do. Such as: What happens after you hit save on a sales order? Get to a point where you are ready to hit save, goto the install folder and delete the dex.log, then hit save. Now you have a clean log that shows what happens after you hit save.
BobSchleicher