I have a 900Mhz iBook running Mac OS X 10.2. Sometimes the laptop fails to awake properly from sleep mode, forcing me to do a hard reboot. I remember in Mac OS 9 this would result in Disk First Aid to start up automatically during bootup. When trying to run Disk First Aid in OS X...I am only able to fix and verify permissions. The "verify disk" and "repair disk" buttons are greyed out. Is this the case for all Mac OS X users, or is it a problem that applies to just me? I Windows XP I am able to run a disk scan manually but there doesn't seem be a way I can do this in Mac OS X. Is buying Diskwarrior the only way I can do this? Thanks.