I'm not sure it this is a 'display' question or an iTunes one, but here goes: I just started using a DVI to ADC adapter so I can use my old 17" LCD/ADC display as extra desktop space for my new 23" display. I've got the two screens set to be continuous. When I go to 'screen saver' both screens display the saver. But in iTunes, when I turn on the Visualizer, the secondary screen goes dark. Does anyone know how to work around this? It would be most cool if both screens displayed the visualizer. Perhaps going to 'mirroring' mode will do it, but that's not my usual working mode. BTW: this issue aside, the adapter works great and even works well with the 'Spaces' feature in Leopard.
Mac Pro Quad Core Intel Xeon / PowerBook 17", Mac OS X (10.5.2)