>Yesterday, I upgraded to Virus Scan 5.16. Now, I find that my NEC LCD monitor takes about 10 seconds to appear. Whenever the screen appears, as soon as I hit the keyboard, I used to have my screen appearing immediately. Now, it's longer. Why is that?

I finally found the problem. I don't know why but when I installed that, the status of my Energy Saving changed to StandBy. I turned it off and it's ok.