I have an old Compaq Presario Laptop, and I have just replaced a duff hard drive, up grading from 20 Gb to 40 Gb. I cannot, however, get Windows XP to re-install. The recovery disk doesn't work, I just get a message up saying that the recovery disk is faulty, and the XP disks will not start to install, I get a message up saying "operating system not found". The dickwads at Compaq refuse to help, saying that it is software issues... Anyone got any ideas?