I cannot unhide my old Hard Drive's Partition

  Mr Computer 20:53 18 Jan 2005

I have got a sata drive running XP pro,when I boot into it from osl boot manager,I cannot see my old ide (C) drive, as its partition is hidden.
Partition manager cannot unhide it although it can see it from within the sata drive & even says it can unhide the old C drive partition. How ever on rebooting and appling the changes the old c drive is still not visible. How can I unhide my old Drive's partition. When I boot into my old C drive (XP pro also) I can see both sata drives & my other secondary h.drive without any problems.I am running AMD 2800+ 1gb ddr Asus A7N8X deluxe Mother Board.
I would be grateful for any suggestions,Thanks.

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