Sony VAIO VPCX11 User Manual
Page 107
Troubleshooting >
Computer
Why doesn't my screen turn off after the automatic turn-off time has passed?
Some software applications or screen savers are designed to temporarily disable the feature of your operating system that
turns off the computer screen or places the computer into Sleep mode after a certain period of inactivity. To solve this
problem, exit the running software application(s) or change the current screen saver.
What should I do if I cannot boot my computer from the external device connected to the
computer?
To boot your computer from the external device, for example the USB floppy disk drive or the USB optical disc drive, you
need to change the boot device.
Turn on your computer and press the F11 key when the VAIO logo appears.