Hello,
You might have some corrupted preferences files. Here's how to take care of that. Locate this file: com.apple.keychainaccess.plist It's located here:
MacintoshHD/Users/Library/Preferences. Open the Preferences folder, locate that file, drag it to the Trash, empty the Trash.
And... run Disk Utility. It's here: Applications/Utilities. Launch DU, select MacintoshHD in the panel on the left, then click Repair Disk Permissions.
I hope something helped!
Carolyn 🙂