When you turn the unit on are you at least able to see the Asus logo? Have you tried to see if you can get back into the BIOS? or are you simply getting a black screen?

I'm not sure if I'm understanding correctly but I'm assuming while plugged in the power mode will be different then when using battery. Although it should not make the unit hang or freeze.

I'd suggest downloading the Asus Backtracker. Its always a good ideas to create a backup.http://support.asus.com/download.aspx?SLanguage=en&p=3&m=asus+backtracker&hashedid=n%2fa

It's a good idea to remove the battery. However, watch out for the connection points making sure you don't accidentally bend them or damage it.

Prostar Computer wrote:Microfiber cloths do a decent job. You can apply a small amount of water to them too and it should help quite a bit.As Prostar Computer suggest microfiber would be the way to go. Compressed air is good too.