I do it outside of media center. Double click on one of your tuners in network. Then click on the "card" and you'll have a list of aps which are links to webpages inside the cable card. The first one is the CA screen.
You can do the same thing when you go to diag inside media center and click on your first tuner and all the aps will show up where you only had dia for that tuner before. You can still click on the first one and go to signal etc as before but you can also open the webpage inside medai center.
I do it outside incase there is a lock up since it's easier to get out of a browser window than it is to close out of media center with a lock up.
But it sounds like your problem is the video card and possiblly two displays being cloned. Make sure you've got the latest cat version (8.7) from ATI and if two displays make sure that they are extended not cloned. Cloned won't work because it's a drm violation of putting the signal on two displays. Also if you put media center onto the second display, move it before you start live tv or any HDCP DRM content or you'll get the restriced screen. Use the DRM license if you've updated and windows thinks the DRM is expired. It renews itself every 90 days but since you reloaded the system it might not be renewed. Also check the MS Knowledge base about media center tv fixes since I remember seeing several in June and there was a roll up of all the updates at the end of June. Make sure you install that.
I also have a problem if you unplug or replug a display device hot that the tuners disconnect and don't reconnect as USB 2.0 and for some reason I have to reboot if I do that. Now I leave everthing plugged in (the ATI Radeon card see the projector whether it's off or on) and it keeps the extended desktop. If I don't the default is cloned and I ahve the same problems you're going through now.
John
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