Acer Aspire Display

[MTB1074]

Hi,

My Acer aspire 5551 has been reformatted, and everything is working OK, apart from when I unplug the battery, the display changes it's "contrast" and is very light (still maintaining the brightness of the power plan though). Can you suggest a cure, please?
Thanks

 

[TechyInAZ]

Try using windows' built in contrast changer (or whatever you call it) in the control panel.