Hi Kristian,
Thanks for responding so fast and for being so supportive.
Just so you know, I have been using the Extreme card without incident with my FCP system since I bought it nearly a year ago. This issue just popped up last Friday with no changes and no movement of any system components. I monitor analog via component out to a broadcast monitor, and the issue seems to be somewhat intermittent. I am unable to try the card in a different computer as I have just one MAC, but I will try to reseat it and will also try a different slot if that doesn’t work. I only have one monitor as well. I will keep you posted as to my findings.
Thanks again for being there,
DRW