I tried to activate the "Find My Mac" through System Preferences under iCloud" on my Mac Mini, but the icon is faded out, cannot access the check mark box. When I clicked the button "More" on the right, it prompts the alert message "Some configurations, such as a software of hardware RAID, do not support a recovery partition and can't be used with Find My Mac". Any ideas why?
Here're some hardware info:
Mac Mini i5
OS 10.8.4 **Installed "Parallels Desktop" on same SSD drive.
512 GB SSD (no partition)

Thanks in advance