HT1222: Apple security updatesLearn about Apple security updates
Currently Being ModeratedMar 20, 2013 11:02 AM (in response to CycleDave)
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partition & use Disk Utility from there to Repair the Disk, then Repair Permissions.
Reboot, any change?
Currently Being ModeratedMar 20, 2013 5:42 PM (in response to BDAqua)
Thank you for the suggestion ... I repaired the disk ... repaired the permissions ... from the CMD+r restore partition ...
I'm in the process of doing a Software Update scan ...
Thanks for the suggestion ... hope there might be more ...
I know these are supposedly never monitored by Apple ... but I can always hope!
Currently Being ModeratedMar 20, 2013 6:07 PM (in response to CycleDave)
More on this ... The USB ports still work. When I put the MacBook Pro to sleep, the light on the Cinema Display glows bright and dim as before.
Currently Being ModeratedMar 20, 2013 7:14 PM (in response to CycleDave)
Hold a flashlight close to the screen at an angle & move it around, do you see a faint Desktop?
If so the Backlight or Inverter is bad.
Currently Being ModeratedMar 22, 2013 4:21 PM (in response to BDAqua)
No faint desktop ... and I re-hooked up the LCD monitor (with a DVI to HDMI adaptor) and it still won't see an additional monitor. Again, all this happened right after installing a security upgrade ... any chance multiple monitors was de-activated by accident???
Currently Being ModeratedMar 22, 2013 5:53 PM (in response to CycleDave)
Anything is possible, but that'd really require too much going wrong to be an easy explanation.