Hi, Yesterday I installed Windows 7 64b Home Edition from the original dvd on my Asus G71G laptop and used Daz loader. Everything went well for the evening for a few hours but when I started my laptop again in the morning, it shut down without any error message after some 20 seconds of use. I tried everything I could think of and learned that the computer crashes even while in BIOS or when booting from the windows dvd. Temperatures shouldn't be a problem according to BIOS. It sounds very much like a hardware problem but then again, it worked perfectly yesterday.. I'd be very thankful if someone had any idea what this is all about. Thanks in advance!