Iam using Hitachi 320 GB hard disk Sata
2nd Hard disk is 80 GB samsung
using XP on 320 GB hard disk... pc is running fine....

but partition magic and partition table doctor showing wrong in hitachi hard disk
how can i solve that??? i dont wanna format XP now...

First off, ensure all hardware drivers are functioning properly (check Device Manager), then back up anything of value you want, on any of the partitions, on the "problem" hard disk.

Once you've done that, if you have all the software for O/S's, programs, etc, let the partition manager (running from within the Windows environment) correct the problem. If it's a reputable product, things should be fine.