PowerMap and Map (SELECTSeries 1) Problem with Oracle

I have downloaded and install both PowerMap and Bentley Map release candidates and I am trying to connect to my Oracle 11g server.

Whenever I try to connect through the 'Open Oracle Spatial' or 'Import->GIS Data Types', and add a new Oracle connection, I fill in my connection details, click 'OK' and the applications freeze (for both PowerMap and Bentley Map).

Anyone else had this problem? How do I work around it?

NOTE: The new GSA will open and register the Oracle tables perfectly.

Cheers Ian