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Turn your notebook off.
Turn your notebook on, and immediately start pressing the F8 key, once or twice per second,
until you see the Windows "start-up" menu (white text over a black background).
Choose the "start in VGA (low-resolution") mode" (or some wording similar to that).
You computer will start-up in '800-by-600-by-256-colours' mode, which should work.
Adjust the screen-resolution, and the number of colours to "optimal" values.
there might be a problem with the VGA driver. while booting, repeatedly press F8 until you get the boot options (black screen with white text) with your arrow keys, you select "boot in VGA mode"
then you can easily reinstall the video driver.
Removing the cmos battery isn't always enough to reset the bios you may need to find the 'JBAT1' terminal on the mobo and put jumper across pins 2-3 then back to 1-2.
But it may be a faulty mobo where the charger connects to the board.