Idea Digital Imaging wrote: > I tried to get some ambient light measurements with an i1 on my MacBook Pro > using both 1.3.6 and > 1.3.5 and have run into problems. > > The data from the i1 is captured and a chart produced, but then I get this > instead of the results: > > spotread <Error>: kCGErrorInvalidConnection: CGSGetWindowTags: Invalid > connection > spotread <Error>: kCGErrorFailure: Set a breakpoint @ > CGErrorBreakpoint() to catch errors as > they are logged. Hi, some googling seems to hint that this is a bug in Lion. <http://lists.apple.com/archives/carbon-dev/2011/Aug/msg00020.html>, although it appears that Apple have made little effort to fix it. It doesn't actually interfere with spotread operation at all (ie. the messages are just noise). Graeme Gill.