Did you plug in your mouse and keyboard before you powered on the board?
Gerald
yes I did. I just got my AC adapter too and that doesn’t help.
And sorry for the duplicate posts. never used groups before so it confused me when the post didn’t show up.
If you get that window in the upper left, just hit reset and it should go away.
Tell you what. Go here and try this:
http://circuitco.com/support/index.php?title=BeagleBoneBlack_HDMI
Let me know the results and then we can take it from there.
Gerald
The site is down. And has been for about 2 hours. I’ll try again tomorrow.