Hi,
Please check the video i posted :
http://www.youtube.com/watch?v=ejoFyMg5wNM&feature=youtu.beThe video shows exactly what the problem was.
Open any browser, IE or Mozilla Firefox then the screen keep shaking but when you close it the desktop shows fine display.
This happened even after newly fresh format, no virus detected.
Before formatting it, the laptop comes with password logon.
What i noticed that time, once the password screen shows up the button //////////////////// will fill the password section.
So, i need to backspace to cancel the auto /////////// that fill the password section.
I think the keyboard start to malfunction.
Expert opinion needed here , all thoughts are welcome and thank you for your time helping.
JEFF