Yes, I do. I did try it with the latest, 10.4.9, but when I saw it was not listed for Lion specifically, I tried 10.4.1. Neither of them works. I tried different combinations of OpenIO and driver, under AJA Support supervision. Basically, you're right, all evidence points to the harware driver working, whether it's 10.5.2, or 10.4.9. Everything