FCP 5 on Macbook, 2 GHz, 1 GB. AJA Io LD connected to Sony DIgibeta. FCP crashes when I try to launch Log & Capture, no matter what Device Control / Capture presets I use. My ageing G4 Powerbook handles the device control fine but since it has a very slow processor and a broken screen with a large portal into the other dimension (also known as a big black bit) I’d rather use my new machine, if at all possible. Same problem exists when I try FCP 4. Very frustrating.
Did you try searching the AJA Io forum for an answer? Or posting in that forum?
Do you have the correct OS / QT / Io Driver combination for FCP 5? If your system has been updated to the latest and greatest OS / QT / Io Driver combination, that could lead to crashes with FCP. When running older versions of FCP it’s important to not update your system too far.