when i sign on under my admin user the screen goes black. i have to reboot and switch users i am then able to sign on and function properly. does anyone know what is wrong my admin user?
Unplug the power, remove the battery and then hold the power button for 30 to 60 seconds. Then reattach the power and attempt a boot. It worked for me! Just shutdown, put the battery back in you're good to go. Worked for me so definitely worth a try.