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sw mn. | have a Lenovo thinkpad t420 and the sreen is brite until I plug in the adapter to charge the unit and then the screen is dim. just started doing this a couple weeks ago. don't think I've changed anything that I know of. windows 7. thanks. also what do you think of kapersky, mine is due for renewal and don't know if I need it and if there is something comparable that doesn't cost as much.
Edited by andysla 2/1/2016 19:33
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dim screen
