ZenWorks (ZfD3) Sybase Install?

When doing custom install of ZenWorks(Zfd3) I’ve chosen all components, including the Sybase inventory database. However, the install program will not continue after selecting the server to which I want to install ZfD3. Clicking the Next button at this point has no response. If I do a custom install without Sybase everything installs as expected. I’m installing ZfD3 to a Netware 4.11 server (currently SP9). Any idea’s?