I bought a new western digital 320gb sata hard drive. I was going to replace my old ide hard drive but when i plug in the new hard drive the bios says its only 134gb and when I try to install windows when it tries to start formatting the hard drive it says disk is not accessible. I tried booting up the old hard drive with the new sata hard drive pluged in and when windows starts it says its installing new hardware and it comes up as the correct medal and it says new hard disk but it doesn't show up in my computer. However when I got to device manager its there and it says the device is working properly. Any suggestions? or is the drive just now compatible or what?