Hi I have searched long and hard and need help please. I have a P4 2.8 CPU with 512 DDR400 Ram and WinXP Pro installed. My hard drive is a Seagate Barracuda 120GB (Ultra) ATA. I have replaced cable to manufacturer's spec Ultra ATA cable, black interface used for master and jumper on Cable Select. I do not use the slave on this cable. I have checked BIOS and auto detected drive again. All seems fine here. I have tested transfer rate on this drive with HD tach and HD Tune and get around 2.8 MB/sec. I experience very slow boot up and PC in general is very slow to start and execute programs. I have removed all spyware and other threats with no effect.