DW. PHP & MySQL problem -> no tables shown

hi.

I'm having an annoying problem with Dreamweaver.
When I try to create a recordset the recordset dialog shows no tables, also
when I try to test an existing query from the dialog I get an error message "an
unidentified error has occured". Th database list in the MySQL connection
dialog is displayed correctly. I don't know where the error is commin from, but
I recently updated my RHEL3 server with php 4.3.8 and mysql standard 4.0.20.

thanks in advance for any help..
Tijs van Erp