My presario b1900 only boots normally when a screen lid closed

Hi im a compaq presario b1900 user and suddenly started to have a booting problem since i mistakenly closed the laptop lid in full while booting and opened it up right after.
Then, my laptop only boots perfectly when the lid is almost closed under rougly 30 degrees - whenever i switch on my laptop with the screen lid open, it shuts down after 2 secs and automatically reboots, but then shuts down again ,and on and on.
But after once it goes into window, it works perfectly with the lid open and works well as log-on and off at standby mode.
It only shows a problem when booting after powered on.
is it because my HDD got damaged from a sudden screen lid close??
Or should i change HDD or is it a window issue??

Thank you so much for replying; unfortunately, my screen had already gone gray by the time I read your reply and I had to take in to the Genius Bar. My laptop's up and running, but the main problem is still unknown and I'll have to buy a new one soon. Thanks again!

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hmmm...
how about checking both your wired and wireless nic drivers in device manager to make sure that the "allow computer to turn off this device to save power" checkbox on the power management tab is deselected.
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