External monitor not working, again, with update to 10.6.3
I used to plug everything in, including the Samsung, and push the start buttons on both the monitor and MacBook Pro and then close the laptop. The monitor's button stayed a steady blue until the startup was complete. Then a "check signal cable" warning would come up after a few seconds. I could then push any key on the external keyboard and that monitor would come on as it should.
What did Apple do this time?
MacBook Pro, Mac OS X (10.6.2), Update to 10.6.3