Mathematica JDBC error

I'm trying to run a Mathematica program (that I didn't w开发者_Python百科rite) locally. I have run it on another machine (that I didn't set up).

I've set up the necessary mysql database, but I keep getting this error:

JDBC::error: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. >>

I can't figure out how to get any nested exceptions from Java and I can connect to mysql using the user/pass I'm sending.

Help!?

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You can connect to the database from the machine in question? Something like

TracePrint[COMMANDHERE[], DatabaseLink`OpenSQLConnection[__]]

may shed some light on what parameters are being used.