Hello,
I noticed that the brightness of the LCD screen on my Presario 2700T laptop is dim. The brightness stays the same whether it is plugged into a power supply or running on a battery. It seems that the brightness level is now at the level when a battery is used with the AC. It used to be that when I ran the laptop on AC the screen would brighten dramatically, but not any more.
Btw, the AC power supply still charges the battery, and I have used the keyboard to turn the brightness all the way up.
Anybody know what the cause of this problem?