I've posted this on the VMware forums, but haven't gotten any response...
VMware *officially* does not support connecting from a Mac to a Vista virtual desktop. I can connect from the Mac to XP with no problem, and can connect from Windows (XP or Vista) or Linux (tried several distros) with no problems to an XP or Vista virtual desktop. The connection from the Mac times out, and no errors are generated on the target virtual desktop. I am able, however, to directly RDP from a Mac to a Vista machine, just not using the VMware View Connection broker.
Has anyone seen this issue, and figured out a way around it?