My reports connect to MySQL. The driver I use is the MySQL 5 driver (myodbc5.dll).
The Crystal runtime engine does not work with the MySQL 5 driver.
See this SAP link regarding MyODBC and the MySQL 5 driver:
You either need to move "down" to 3.51 or use those other drivers...
We use the SAP Crystal runtime engine to run the reports. This is something completely out of our hands.