HELP, my imac does not open up, black screen, one menu in middle, mouse does not work, new batteries
my imac does not open correctly, it opens to a black screen, with one menu pull down in center, no control over anything, back screen.
iMac
Try a Safe boot Try safe mode if your Mac doesn't finish starting up - Apple Support
If that doesn't help try resetting the SMC Reset the System Management Controller (SMC) on your Mac - Apple Support