Thanks to your posting re: On my G4 mini this is 1024x768, which is fine, but I know older macs revert to 640x480 which would be a right pain (it's barely big enough for the system preferences window, let along iTunes). Leaving a monitor adapter connected, even without a monitor on the end of it, will often help fool the mac into thinking that nothing has changed so it won't revert to default settings.
I attached a cheap belkin cable to one of the old ADC ports of my headless G5 graphics card and it works great. Using Vineserver (free) on the G5 and VNC chicken on my macbook, I can access the screen at full 1680 x 1050, ( not limited to 1024x768)
Now I pretty much use the G5 to stream itunes library via iphone remote app to different airports..works like a charm and with connect 360, works great with xbox also for videos.
cheers,
Krisen
