Dear All. I have been stuck to a peculiar problem. Let me discuss the situation. I Have got the following configuration: Asus motherboard with Intel Dual Core processor, 2 GB of DDR2 RAM and one 80GB P-ATA and one 500 GB S-ATA HDD. I have installed Windows in the S-ATA HDD and decided to use the P-ATA HDD as additional storage drive. Now the problem is, sometimes the system cannot detect the P-ATA HDD, and sometimes when it detects it appears as Primary IDE Slave and in that case the SATA drive disappears from the boot priority drive list in bios setting. So the system cannot boot. Presently I am using my PC without connecting the P-ATA drive. But I want to use both of them. In this situation can u masters help me out of this problem? Thanks in advance........ Kabiraj.