I recommend that if you do any work with projectors or external displays at all you check the "Show displays in menu bar" box at this point. Then, open System Preferences, and click "Displays". Ensure that the projector's input setting is on the correct input. Once that update is complete, plug the projector into the MacBook Pro. I updated mine in this way with no problems. You don't need to have the projector plugged in as well during the update, just the adaptor itself. You'll need to have the mini-DisplayPort to VGA adaptor (the "special connector") plugged into the MacBook Pro for it to work, as it actually updates the software on a chip inside that adaptor. The very first thing you should do is make sure you download and install the There are a number of things we can try to resolve the problem here. Hi suzi1967, welcome to Apple Discussions!
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