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Hi, I'm a bit new in here, but I could use some advice. I have a Thinkpad T21 that I've run WIN2K on for the past several years with minimal problems. Recently, however, it has developed a periodic flicker, I can continue to work on it, and it comes and goes. For example, when I started writing this post it was flickering and now it's stopped. While it flickers, the machine makes sort of a whirring whisper. I'm up to date on WIN updates, as well as IBM updates from their webpage (drivers, bios update etc). Any ideas? or is this machine dying?
 

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Flicker on an LCD display is usually caused by the Backlight going on/off. This can be electrically or mechanically caused. If it fails permanently the screen will go dark, but you will see the displayed info if you look closely with the screen well lit from the front.

As always it is easier to diagnose a hard failure than an intermittent one.
 
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