Thanks for responding Danny, No, there are no other cameras connected at the same time, and Yes, the camera was in VCR mode. Under Preview Device Tab (In Preferences) there is an option for OHCA Compliant IEEE-1394/DV, which I chose. The connection is acknowledged in the details box. But when I hit the “external monitor” button above the preview window the computer freezes up.
(I never had trouble with this on my earlier computer using Vegas 5.)karl