When you say "superimposed over the dock icon", do you mean you use [NSApp
dockTile], or actually put an NSPanel over the dock? I'm using dockTile to put
up a progress bar - it's a custom one that's gray & white, but it works fine.
The sample app for dockTile is easily tweaked.
On Aug 14, 2012,
My app has been displaying a progress indicator superimposed over the dock icon
successfully until more recent MacOS versions. With the latter it appears as a
black bar instead of blue (currently testing on Mountain Lion but suspect Lion
has the same problem, Snow Leopard and previous ones are o
