I bought an Acer Aspire 7520 laptop the other day and before switching it on for the first time, I hooked up the charger as instructed. Upon doing so the laptop made a sort of high pitched sound, but this disappeared when I switched the laptop on. Earlier on though, upon again connecting the charger, I heard this same sound, even when the laptop was turned on (though it appears to have stopped now) Is this sound normal? Also whilst i'm here, I'm wondering if I can use Nvidia's driver for this machines display rather than the ones from Acer? Windows Aero seems to perform a bit p*ss poor, and it shouldn't be struggling on this hardware surely? So I'm thinking is it dodgy old drivers? Cheers! Alex

The laptop I have makes a faint but noticeable high pitched sound when the battery is charging. I'd say it's normal. Here is the NVidia driver for the onboard graphics: http://www.nvidia.com/object/winxp_... WinSimple Software

I would check with Acer. It should be under warrenty. But good luck with there support. Keyboard not detected. Hit F1 to Continue. BREAKFAST.SYS HALTED Cerial port not Responding!!