While installing Xp Pro SP3 I can format the hard drive and start to install but it stops installing at about 33% and will not go any farther. Help Me Please? It is a home made computer and I have 1.8 mhz processor,1 gig memory, and 250 gig hard drive. I had XP Sp1 on it before but the disk was craked so I bought this SP3 and I cannot get it to istall all the way. It is now my daughter's computer for school and I need to get it up if I can.