Well I put that 400GB hard drive into my gateway and here is what happened. I did a right click onto my computer until I got to the disk management area. From there I see 372.61BG of unallocated SPACE avaiable. It says it is online and basic disk.  It was set up as a slave drive to my 40 GB HD that has the system on it. When I do  right click in the unallocated space it will not allow me to format it and windows did not assign a (letter ) to the drive. What do I do from here? Please advise.

Thanks

OPPS: I found another way to do it and it has been assugned volumn ( I )Hello, how are you?
Are you sure that you have partitioned your new 400GB hard disk. If YES then Restart your PC and doot t from Windows98 bootable CD and then format thoses drives.
Otherwise you must partitioned your new 400GB hardDisk. You can do this easily bu booting from WIN98 bootable CD and type "fdisk" and I do hope that you are familiar with rest of the process. Be sure that you disconnect your old hard disk and only this new hard disk is connected with your PC.
Take care of you and others and be happy...I actually resolved the problem in another way thanks to the help of the hitachi tech support. It seems that on their webpage are two tools that can be used to check everything that you'd ever WANT to know about ones hard drive. They are DFT and Ftool. Once I got a code BACK of 0x00 we know all was well with the drive so we had to go in and lower the UDMA from 133 to 100. Did a restart and then formated within Windows XP through the disk manager. All is well and working fine. Thanks people.