Currently Being ModeratedNov 19, 2012 3:51 PM (in response to One Brain Cell)
Are you running Disk Utility using your Tiger install DVD? If not, you need to.
Another popular utility is Disk Warrior (more powerful than DiskUtility), however, it costs about $100.
You don't have enough free space on your hard drive as it is typically recommended to have 10-15% free.
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