I have a fat32 formatted drive (WD my passport 500GB) that is showing in disk utility but does not mount. I am using a macbook with mac osx 10.5.8.

Disk warrior came highly recommended on other posts but because the drive is not mac os formatted it won't do its warrior magic...
The drive shows in disk utility but the options to repair are greyed out. The drive ejects sometimes but not others. The drive powers up with light and I can hear noise (not loud just a hum that confirms (i think) that it is spinning.). The drive is as it cames and booted on both a windows XP pc and my macbook with mac os x 10.5.8.
I have tried test disk but after running for a day with no other command prompts other than the first recommend I uninstalled it.
Any other suggestions?

Hi Christina,
It's quite possible the AC PSU has given out, if It's only Bus powered as it appears, that's the worst idea ever & asking for eventual problems.
What Format is it?
Did you install any WD SW?
Your best bet is DiskWarrio...
http://www.alsoft.com/DiskWarrior/
But others that may work…
Drive Genius…
http://www.prosofteng.com/products/drive_genius.php
TechTool Pro…
http://www.micromat.com/index.php?option=com_content&task=view&id=31&Itemid=83

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