Thanks for your response, Chad. Turns out I needed to tick the “show as sq. pixels” box in both windows, tick the anamorphic boxes in the clip description and most importantly set my Quicktime Conversion settings to custom, then manually enter 1024 x 576. Also, in Sequence, Settings, Load Sequence Preset… it was defaulting to some strange DVCAM setting and screwing things up. Put it back to DV PAL 48 kHz Anamorphic and it’s fine again. These things take years off my life.