Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Open /Applications/Utilities/Disk Utility.app, select your system drive partition in the list on the left side, and click Repair Permissions.
 
hi

So if i repair permissions on all the drives.. will i lose any information thats on them? like any of my files
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.