Why do I get the error "Couldnīt open a video channel" when using the Trackthemcolors Xtra?
The Mac allows you to open only one instance of a sequence grabber at any one time so only one Xtra can see the video. This error will therefore occur if you are attempting to capture or view from the same source using differing Xtras, say for example the Trackthemcolors Xtra together with the QTGrabSprite Xtra.
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