I have a vaio laptop from a customer, who says it was needing a reformat. He took it to a geek on the local college campus. The computer nerd said it would be a simple process, and he formatted the complete hard drive during an installation of xp. After the format concluded, the installation process continued until the computer does the first restart. As soon as this happened, the laptop now just goes from the very first post screen that says vaio, then the blinking cursor which takes a second then reads 'no operating system found'. I inserted a winxp cd of my own, and it spins like its about to start loading, but then just stops reading after about 5 seconds or so. After that its just the blinking cursor, and nothing else happens. My question is is there possibly some files needed on the hard drive that were possibly deleted after formatting the entire hdd? My customer was told that this particular model has certain files to make the cdrom and other parts of the laptop work. In the bios it appears as if everything is being seen ok, so I dont know. Gonna check the hard drive right now and see that it was formatted correctly.