Tom, thanks for responding. I don’t think I can daisychain through the external drive as it has only one FW400 port (into which, at the moment, is plugged the firewire lead from the camera (mini-firewire plug that end)). The external drive, LaCie d2, has 1 x USB2.0; 1 x FW400 and 2 x FW800 ports. Can one get a lead which will go from mini-firewire to FW800 plug, or, alternatively, FW800 to FW400 (so I can connect drive to computer (2 x FW400 ports + USBs))?
Even if I could daisychain the devices I’m not sure it would help, as I’ve tried eliminating the external drive altogether by setting the computer’s internal drive as the scratch disk – this has given the same problem (crashing when attempting to control tape via the buttons on the capture window). And, yes, I have tried trashing the preferences by dragging the last in this chain to trash: users> (name)> library> preferences> final cut express user data> final cut express HD 3.0 prefs. Is there anything else which should be trashed? And should I also empty the trash?